# Compare Mailchimp vs Thunderbird 2026 | Capterra > Unsure of what to choose? Check Capterra to compare Mailchimp and Thunderbird based on pricing, features, product details, and verified reviews. Source: https://www.capterra.com/compare/110228-230507/MailChimp-vs-Thunderbird --- # Mailchimp vs Thunderbird Features and Cost Comparison Last updated April 6th, 2026 Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team.[Learn more](https://www.capterra.com/our-story/) Your comparison: MailchimpThunderbird2/4 selected [Mailchimp](https://www.capterra.com/p/110228/MailChimp/)[4.5 (17,599)](https://www.capterra.com/p/110228/MailChimp/reviews/) [Thunderbird](https://www.capterra.com/p/230507/Thunderbird/)[4.4 (159)](https://www.capterra.com/p/230507/Thunderbird/reviews/) [## Mailchimp](https://www.capterra.com/p/110228/MailChimp/)[4.5 (17,599)](https://www.capterra.com/p/110228/MailChimp/reviews/) Starting Price $13.00/month Value-for-Money 4.4 Functionality 4.4 Ease of Use 4.4 Customer Service 4.2 Reviews Sentiment Based on [17,599 reviews](#user-reviews) Positive 16,108 Neutral 1,214 Negative 277 [## Thunderbird](https://www.capterra.com/p/230507/Thunderbird/)[4.4 (159)](https://www.capterra.com/p/230507/Thunderbird/reviews/) Starting Price Contact vendor Value-for-Money 4.7 Functionality 4.3 Ease of Use 4.4 Customer Service 3.7 Reviews Sentiment Based on [159 reviews](#user-reviews) Positive 138 Neutral 17 Negative 4 ## Not a match? 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Fit Score methodology Our Fit Score reflects how reviewers rate a product’s performance against a set of features reviewers rate as most important. A higher score indicates the product is rated better in delivering what reviewers most care about. If the Fit Score is not shown for a specific product, that only means there are currently not enough relevant data points to develop a meaningful score. It does not indicate that the product should be excluded from further evaluation. Best for Methodology 63%Fit Missing features Feature ratings Mobile App 4.5 Email Distribution 4.6 Inbox Management 4.6 Email Monitoring NA Access Controls/Permissions NA \--%Fit Missing features Feature ratings Mobile App 5.0 Email Distribution NA Inbox Management 4.5 Email Monitoring NA Access Controls/Permissions NA User satisfaction User satisfaction 4.5 User reviews[17,599](https://www.capterra.com/p/110228/MailChimp/reviews/) Ease of use 4.4 Functionality 4.4 Value for money 4.4 Customer support 4.2 User satisfaction 4.4 User reviews[159](https://www.capterra.com/p/230507/Thunderbird/reviews/) Ease of use 4.4 Functionality 4.3 Value for money 4.7 Customer support 3.7 Price starts from Price starts from $13Flat Rate, Per Month - Free version - Free trial Price starts from \-- - Free version - Free trial Best for Best for Mailchimp streamlines business operations by connecting over 11M companies worldwide with customers, allowing sales, creating and launching effective marketing campaigns in a single platform. Best for Not provided by vendor ## User reviews Pros & cons VR Verified Reviewer Marketing Manager > "It gives you everything you need in one place, from email marketing and automation to segmentation, landing pages, and reporting, which makes it a very complete platform for serious..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7129909) AH Amir H. E-Commerce Manager > "The high-intensity pricing structures are not so good in terms of value when our customer base is increasing and customer service is virtually useless when you fall into their rigid spam..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7106742) RS Radha S. Legal Assistant > "The drag‑and‑drop editor, pre‑designed templates, and clear workflows make day‑to‑day email marketing straightforward, even without extensive technical or design experience." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7121771) Patrick S. Corporate Finance > "There are WP integration security issues that have come up by my hosting provider. While I keep all my software up-to-date, I have to keep scanning/repair software running in the..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7105481) AH Amir H. E-Commerce Manager > "The convenience in the area of the drag-and-drop user interface is impressive that our marketing and sales team can create beautiful promotional products emails with ease and in a short..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7106742) JS Jake S. Founder and CEO > "I also found it a little opaque - sometimes I would import new subscribers, having archived enough to be under the 10k threshold, but then face top up charges for reasons I never fully..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7044018) Elton Takudzwa N. Website Owner > "The layout is clean and well-organized, allowing users to quickly find key features such as campaign creation, audience management, and analytics." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7140257) Suresh K. Senior Business Executive > "It gets a bit pricey as the number of contacts in your account increases and you are restricted in getting some good features as you are required to upgrade to a higher plan." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7053342) MP Maksim P. Business Owner > "What I like most about about Mailchimp is the convenience of being able to send a mass text or email to all my customers, notifying them about my new batch of products and reminding them to..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7122403) KF Krista F. Operations Manager > "What I least like about mailchimp is that I cannot resend email to non-openers if i use the multiple subject line feature." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7142253) CB Christine B. Marketing Manager > "I also appreciated the variety of templates and the built-in analytics, which make it simple to track performance and optimize campaigns. While the platform can be quite expensive compared..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7139562) PG Paula G. Director > "I don't always think to look for un-subscriptions in the email summary and then I go send another email to the same list, so the people who unsubscribed are not included moving forward and..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7138371) VR Verified Reviewer Compliance Manager > "Content optimizer, I also love the "Creative Assistant," which automatically pulls your brand colors and logos from your website to build designs for you" [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7133039) BR Bradley R. IT Director > "It’s a solid platform for straightforward email marketing, but once you start needing deeper customization or more advanced workflows, it may not keep up as well as some alternatives." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7144180) RS Radha S. Legal Assistant > "Creating email campaigns is straightforward, with clear workflows, drag‑and‑drop templates, and helpful prompts that make it accessible even for beginners." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7121771) VR Verified Reviewer Compliance Manager > "price increase quickly, also the transition from a simple email tool to a full CRM has made the navigation slightly cluttered and more complex than it used to be." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7133039) BY Brian Y. Visa Consulting Specialist > "Mailchimp has assisted me in sending organized updates and information emails and my communication with visa clients has become more balanced and professional." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7069016) NN Nicholas N. Quality Assurance Manager > "Spam filtering at times flags critical messages particularly for first contact hence forgetting to check spam may result in loss of business" [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7142553) ZR Zane R. Office Coordinator > "The drag-and-drop builder makes it easy to create professional-looking campaigns quickly and makes it very efficient to create newsletters and event promotions." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7095215) MP Marissa P. executive director > "It's challenging as a small org to be able to afford the paid subscription when and can't send newsletters to everyone that gives you their email." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7044795) Kazi A. Social Media Executive > "It was the perfect tool to help me launch my small business marketing campaigns, and it integrates seamlessly with my website." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7104781) RS Radha S. Legal Assistant > "Additionally, the interface, while beginner‑friendly, can sometimes feel crowded or unintuitive when managing multiple campaigns, audiences, or settings." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7121771) FG Fabrizio G. Design Lead > "Functional lead capture solution and creating effective marketing data report and also content nanagement, Mailchimp is excellent." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7044127) VR Verified Reviewer IT Specialist and Systems Administrator > "The issues usually come from scaling, integrations, and access control needs that go beyond simple campaign work." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7056336) TF Terrance F. Business and Financial Officer > "I love the comprehensive ability to design and distribute newsletters and emails to our subscribers while also managing and maintaining our subscriber database all in the Mailchimp platform." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6850967) KK Kevin K. Marketing Manager > "For organizations that operate with multiple agents or brands, Mailchimp lacks the flexibility and depth required." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7045212) MD Melissa D. Patient Coordinator > "The drag and drop feature allows me to drag and drop my own custom videos and images, and it has a clean interface." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6822446) CB Christine B. Marketing Manager > "Additionally, certain automations and reporting features aren’t as flexible as they could be compared to more specialized platforms." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7139562) SC Stacy C. Development Director > "For small nonprofits, Mailchimp works well because it is designed for simple email newsletters, announcements, and community updates rather than ecommerce marketing." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7109504) Samuel A. Digital marketing manager > "While importing files, you have it follow a format of names and email, it does not allow for a flexible contact type of email only and it's become costly when you have a larger email..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6653707) Imanol Alfonso P. CTO > "It makes designing emails and automations quick and easy, has robust analytics and segmentation tools, and integrates smoothly with other platforms." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7034428) Artur C. CEO > "The main drawbacks of Mailchimp include its high cost for larger lists, complexity of advanced features, limited customer support, restricted template customization, less detailed..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6307425) JS Jake S. Founder and CEO > "Also, great that you could tag audience members, and also arrange them into segments - this double system gave good flexibility for recording data." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7044018) BR Beckie R. Owner > "Additionally, even though you might have a perfectly scrubbed mailing list that you obtained over years personally via a dedicated website, after completing hours and perhaps days of work..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6763114) RB Regina B. Owner > "What I like most about Mailchimp is how beginner-friendly the platform is, especially for small businesses and entrepreneurs who need professional email marketing tools without a steep..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7084901) RS Radha S. Legal Assistant > "I also found some limitations in design flexibility and automation depth unless you upgrade to higher‑tier plans." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7121771) AA Amanda A. Operations Manager > "It offers value for small teams or organizations that need an all-in-one marketing platform that isn't too expensive for the features it provides." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7114133) VR Verified Reviewer Digital Marketer > "Segmenting emails by audience is a bit difficult in the platform and had a steep learning curve." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7090146) PG Patricia G. Customer Service Lead > "It helps us to keep a professional image without having to hire a dedicated designer, though the part of contact management needs constant cleanup." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7076467) TR Tanya R. Creative Director > "The free plan doesn't offer automations which is annoying if you're trying to set up delivery of a free ebook or other incentive. Once you move on to the paid plan, segmenting the audience..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6632076) SK Sam K. Real Estate Salesperson > "Overall, I think Mailchimp is the best software I have found to create interactive email marketing materials, but I do wish that there were some additional capabilities within the platform..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7043962) VB Violet B. Artist Representative > "I dislike that the platform itself is not as user friendly as I would like it to be and there are too many options that look too similar within their templates." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7137394) MW Michelle W. Executive Director > "Mailchimp has an easy-to-use interface, automations, and excellent analytics that help our nonprofit send targeted campaigns and manage data effectively." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6864417) HB Holly B. Professional recruiter > "If you use a free email account then it will not deliver the email campaigns properly." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7118249) PK Piyawat K. Marketing Manager > "Mailchimp offers an excellent tool in terms of automated and segmented email campaigns, yet the prices get higher as the number of contacts grows." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6845748) JC Jeff C. Marketing Director > "Compared to some other similar softwares we've used at our hospitality group, the pricing made some jumps over the years that was a little frustrating." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7123470) LB Lindsay B. Social Media Manager > "I also used Mailchimp few times as Forms builder, it’s great when intraget to capaign and get more reports than I can without it" [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7097938) JC James C. Customer Success Manager > "Some of newsletter/email templates are too rigid in their design, and if I want to create something truly unique, I have to resort to custom/blank creation forms in order to achieve the..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6762810) MP Marissa P. executive director > "I love using mailchimp and hopefully can afford the paid subscription in 2026 so we can send to all of our listed people through one account" [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7044795) RS Radha S. Legal Assistant > "Overall, while Mailchimp is powerful and easy to start with, cost escalation and feature restrictions can be frustrating as your marketing needs become more advanced." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7121771) VC Valerie C. Marketing Manager > "You also have the ability to customize templates, which can help with branding even more." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7139383) DB David B. Lead Pastor > "The pricing structure was not as competitive as other companies and for someone who needs a simple intuitive design, the tools offered felt a bit overwhelming to navigate." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6810845) PN Poerwestri N. Travel Manager > "Mailchimp's interface is basic enough for campaign landing page creation, and interaction with customer data and list segmentation is easy for me." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6869896) Kelly M. Social Media Manager and Podcaster > "There's limited customer support. If you want to move to a new plan the price increases dramatically." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7119744) EAJ Esami Allan J. Web Developer > "Mailchimp most important functionality is its automation feature,which saves time and ensure audience get the right message at the right time." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6860165) AF Adam F. Lead Consultant > "I am also not sure of the regular efficacy of Mailchimp in getting through spam filters or enticing people to open the emails – except for Mailchimp’s analytics!" [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6850842) Elton Takudzwa N. Website Owner > "Mailchimp has been a valuable addition to my website particularly in helping me capture email leads and convert them into sales." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7140257) VR Verified Reviewer Customer Service Manager > "This makes it expensive for large audience, so I usually have to purge my audience to reduce number of contacts I maintain." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6878410) Jennifer H. Accounts Receivable > "The interface is clean, the email builder is intuitive, and creating campaigns or basic automations doesn’t require much technical effort." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7134588) Mandie K. Marketing Director > "The price has gone up over the years, making it a little less affordable for small businesses." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7107751) Emmanuel K. Sr. Business Administrator > "It's a great tool to use for emails where many things can be customized and a good way to keep track and have great functional capabilities." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7118272) VR Verified Reviewer Owner > "Additionally, designing emails on a mobile device or tablet can be a bit cumbersome, and I've occasionally encountered glitches when sending longer emails on desktop." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6460260) SE Sawyer E. Recruiter > "Mailchimp helped me to streamline my email campaign and helped me to decrease the amount of time needed to do this task." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7130023) ClJ Céline J. Social Media Manager > "I find that Mailchimp isn't evolving enough; most of its features have remained unchanged and unimproved." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7120485) WV Will V. Conference Coordinator > "Mailchimp offers a great way to market our conferences, from registration dates to sponsorship opportunities." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7081708) RS Robert S. Full Stack Developer > "Using a third party like Zapier makes for one more point of failure." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7122201) FO Feraud O. Owner > "The cost and free trail period are great. If you have a startup or are new to email marketing you can use Mailchimp to build a small audience list with for free and see how email marketing..." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6859783) Vincenzo Bernardino R. Freelance > "I get overwhelmed easily when I work because of constant multitasking, the UX of mailchimp always requires me a lot of back and forth" [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6825457) BR Bradley R. IT Director > "For teams that need something dependable for regular email communication, it covers the basics well and doesn’t require a ton of training to use effectively." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7144180) VR Verified Reviewer IT Director > "Sometimes emails that are created do not look the same in Outlook desktop and it is difficult to troubleshoot on why that it." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6887037) TO Taylor O. Digital Marketing Manager > "MailChimp is incredibly intuitive and has some of the best pre-built templates and segments for small to medium sized businesses." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7123753) MG Matt G. Account Executive > "The cost of it continues to rise for the different plans and will charge for inactive contacts in the system as well" [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7018037) JC Jeff C. Marketing Director > "We were able to grow our list considerably and for some team members that were not super technical, we were still able to train them on it which was encouraging." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7123470) AP Ansuya P. Director > "Unfortunately the free package no longer facilitates classic automations, reducing the meaningful use of this package." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6868227) VR Verified Reviewer Reporting and Communications Officer > "You can embed the sign-up box into WordPress or SharePoint sites really easily by grabbing the code." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7047138) ST Susan T. President and Trainer > "Mailchimp has a more difficult interface with their video library being a bit unprofessional as questions arise." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___6856736) RS Radha S. Legal Assistant > "It’s a reliable and beginner‑friendly email marketing platform that makes it easy to create, manage, and send professional‑looking campaigns." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7121771) Anske D. CEO > "Advanced segmentation isn’t as sharp as more specialized tools" [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7123023) Amber M. Owner > "MailChimp is easy to use, has resources available to make e-mails well-designed and effective (like ideal time scheduling, templates, etc.), and is affordable for my team." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7088946) VR Verified Reviewer Head Teacher > "I wish I could try other email campaign handlers, simply because I'm having a bad time with this one, but I am not the one the makes the decision on that one." [See full review](https://www.capterra.com/p/110228/MailChimp/#Capterra___7080883) [View Reviews](https://www.capterra.com/p/110228/MailChimp/reviews/) Leandro A. Developer > "I use it as my main email client , both for personal use and for work , it feels comfortable .Big plus that they don't spam you" [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___7054778) SA Sara A. Engineer > "The settings interface is a bit confusing; in the future 365 email accounts may have issues to works as Thunderbird does not..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6357971) SP Stuart P. Product Manager > "I was using another free email client that would not let me use different ports for incoming and outgoing mail so when searching..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6880981) JMV Jose Miguel V. Adjunct Professor > "Aesthetics and UI: For me, this is a big problem. While this is subjective, and the interface can be customized, when you open..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4842912) Leandro A. Developer > "Also is open source and doesn't spam you" [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___7054778) RK Robert K. drafting > "some extensions have bugs like send later" [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6737417) JMV Jose Miguel V. Adjunct Professor > "Right now I am using Thunderbird for all my personal emails, and the client has all you need to manage successfully all your..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4842912) JF Jamie F. Lead Technician > "I always when trying to select the top email accidentally click the column header and re-order the emails which is annoying,..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___5093745) MK Matt K. Consultant > "Even when I've had ten or more email addresses to manage for different clients, it's been up to the job and easy to use." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6463718) SA Sara A. Engineer > "I don't like very much the menu, especially the settings section." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6357971) Sunny K. Marketing Manager > "Additionally, it facilitates the management of multiple email inboxes in a single, convenient location, which can be quite..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#GetApp___6048711) Brendan B. Coach > "I have had certain performance issues that I could not explain or fix." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6799859) Brendan B. Coach > "Free, open, power, highly customizable email client." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6799859) VR Verified Reviewer Operations Analyst > "Lack of Cloud Integration: Thunderbird does not offer cloud integration, which may limit its usefulness for users who need to..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4565113) JM Juan M. SEO supervisor > "The intuitive user interface makes navigation a breeze, and the seamless integration with my existing email accounts was a huge..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4981089) UA Ubed A. Verification expert > "However, some users may find Thunderbird's user interface outdated compared to other modern email clients, and it may not..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4616069) DK Dev K. Design Engineer > "This is a best-of-class, open source and Free Software desktop email client that works very well with all necessary email..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6130553) VR Verified Reviewer Operations Analyst > "Limited Mobile Support: Thunderbird does not have a dedicated mobile app, which may make it difficult for users to access their..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4565113) JMV Jose Miguel V. Adjunct Professor > "Another great addition of the last years was the "Smart folders," making your multiple account inbox easier to visit and search." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4842912) VR Verified Reviewer Operations Analyst > "Limited Customer Support: Thunderbird is an open-source project, which means that customer support is limited and users may have..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4565113) Sunny K. Marketing Manager > "I have set up multiple accounts in Thunderbird, making it convenient for me to receive emails in one place." [See full review](https://www.capterra.com/p/230507/Thunderbird/#GetApp___6048711) VR Verified Reviewer Operations Analyst > "Complex User Interface: Some users may find Thunderbird's user interface to be complex and difficult to navigate, especially if..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4565113) UA Ubed A. Verification expert > "Security and privacy: Thunderbird includes features such as encryption, phishing protection, and spam filtering that enhance..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4616069) JMV Jose Miguel V. Adjunct Professor > "This one was my first problem after I switch from Microsoft Outlook." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4842912) VR Verified Reviewer Operations Analyst > "Customizable: Thunderbird Mail is highly customizable, allowing users to personalize their email experience by choosing from a..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4565113) VR Verified Reviewer DAM Expert > "No support per email or phone." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___5001917) MK Matt K. Consultant > "It's been my go-to desktop email client for twenty years." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6463718) MT Monica T. Project Manager > "Sometimes when there are a lot of emails coming in it gets stuck, and from time to time I need to delete some of the emails." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3808513) DM Davide M. Indie Game Developer > "I've benn using Thunderbird for several years and have had an overall positive experience with the software. While there are..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___5081958) JD Jacob D. Executive > "Namely, half the time when you repond, the reply won't be shown automatically inline (for at least several minutes)." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3513931) NP Nicolas P. IT Manager > "Very simple to use but could be configurated to have lots of stuff" [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6805419) UA Ubed A. Verification expert > "Lack of support: Thunderbird is maintained by a small community of developers, so users may not receive prompt support or..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4616069) Austin M. Software Analyst > "I think the most impactful thing about Thunderbird is the community that uses the software, making it evolve constantly and..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___5079584) Robert M. Freelancer > "I do not know why they have separated outgoing server settings in another section from the account setting." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3763863) AR Ari R. CEO > "nice interface;- calendar built in (very well thought out);- tabs for better viewing;- mail and calendar pane in one single..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4153313) Robert M. Freelancer > "The search and filter are not very functional, and I could not find my desired result from it." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3763863) UA Ubed A. Verification expert > "Additionally, Thunderbird's ability to manage multiple email accounts from different providers, including POP, IMAP, and..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4616069) VR Verified Reviewer Operations Analyst > "However, some users may find the user interface to be complex and the performance to be slow on older computers." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4565113) VR Verified Reviewer Consultant / developer > "Thunderbird is full of features, customizable with addons and themeable." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4842831) DS David S. Tech Acct MGR > "Setting up Microsoft exchange inside of Thunderbird is difficult if you do not know what you're doing there really is no work..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3834541) UA Ubed A. Verification expert > "Thunderbird offers a wide range of add-ons and extensions that allow users to customize the program according to their needs." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4616069) VR Verified Reviewer CEO > "The calendar and all the addons can't compete with Google or other alternatives." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4580663) Sunny K. Marketing Manager > "It accommodates various mail types and allows for easy configuration." [See full review](https://www.capterra.com/p/230507/Thunderbird/#GetApp___6048711) Gonzalo M. Managing Director > "Integrates less well into Windows than some alternatives." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3712769) UA Ubed A. Verification expert > "Its free and open-source software status and cross-platform support also make it a popular choice for users across different..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4616069) TB Tanya B. Technician > "One thing i particullarly hated was the fact that the program was crashing on me from time to time." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4620389) Hugo G. Software developer and support > "Overall pleased but I'll like to see it improved" [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6805669) JD Jacob D. Executive > "However, this add-on comes with its own bunch of issues." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3513931) JM Juan M. SEO supervisor > "Thunderbird has truly revolutionized the way I manage my inbox, and I couldn't be more impressed." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4981089) Gustavo B. Director > "It does not offer any cloud based system that might allow the software to be used away from where it was installed and..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3484995) Mohamed E. Customer Success Specialist > "I receive all the important emails on this software, it saves a lot of time and gets me notified of any available vacancies." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4635676) James C. Sales and Marketing > "Sometimes I had difficulty and slowness to do more specific searches, using keywords that were in the body of the email." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3444626) VR Verified Reviewer DAM Expert > "Of course, I like that it is open-source and free of costs. And I like Thunderbird Filelink." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___5001917) JD Jacob D. Executive > "Thunderbird, from my experience, is incredibly slow and buggy." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3513931) JM Juan M. SEO supervisor > "From the moment I started using Thunderbird, it was evident that this tool was designed with productivity in mind." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4981089) AR Ari R. CEO > "RAM memory is another con that I'd point out." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4153313) SS Shashi S. Student > "It has fewer features than outlook but as a University student, the software works fine for me because I don't need all those..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4473755) Robert M. Freelancer > "Maybe it is my mistake, So at least it is not user-friendly enough to learn and work with." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3763863) UA Ubed A. Verification expert > "Overall, Mozilla Thunderbird is a popular email client that provides a range of features and customization options." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4616069) DP Darian P. Team Lead of Internal Tools > "We don't use the calendar functionality because it constantly would not work for our users." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3021391) GS Grant S. Head of Sales > "All the features but leaner, more stable & faster." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6165374) VR Verified Reviewer Senior system engineer > "Most generic features are commercialized which will tend other users to use different mail clients" [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3431281) JMV Jose Miguel V. Adjunct Professor > "Since I have been using Thunderbird, I never regret my switch from Outlook." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4842912) SP Santosh P. Digital Marketer > "Iwas needing cloud access to mails and my webmail was not cutting it." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3198853) SP Shane P. Security system engineer > "I like the fact that Thunderbird was free and worked for the most part." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6008627) AL Ad L. Director > "It has a rather childish menu bar layout in black and white." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3024426) Petter K. Parish Manager > "I think the main thing I can say that I like about Thunderbird is that it is free." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___6193707) Bill B. President > "Another issue I have is with the built-in calendar. " [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3258266) ML Mark L. Owner > "A great way to use an email system that is very low cost and has the features and benfits you will need for many small business..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3639522) SP Shawn P. Owner > "The UI is incredibly outdated." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3394046) Stanley M. System Administrator > "I love the new modern look that ships with Thunderbird and the support for dark theme." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4169265) James C. Sales and Marketing > "I've had problems with the manager simply stopping working and having to restart." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3444626) VR Verified Reviewer Senior system engineer > "I think if you want to sync your gmail,hotmail, yahoo mail with your local client, Thunderbird is one such mail client which..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3431281) AL Ad L. Director > "The opening of tabs is something i personally do not like." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3024426) JJ Jeet J. Founder & CEO > "Moreover, it also supports adding SMTP mail which is really helpful." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4053362) Teya B. Teacher: Digital Illustration > "I find the interface very, very dated." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3150330) AR Ari R. CEO > "I was delighted to start using this app when a coworker recommended it to me because I'd been trying to find something that was..." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___4153313) AL Ad L. Director > "Don't like the visual." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3024426) [View Reviews](https://www.capterra.com/p/230507/Thunderbird/reviews/) ## User interface [Mailchimp](https://www.capterra.com/p/110228/MailChimp/) 4.48 (17,599) [Thunderbird](https://www.capterra.com/p/230507/Thunderbird/) 4.41 (159) ### Features Do these products fit your needs? Prioritize real-user-identified key features according to your needs to find your best fit. \--% Fit vs \--% Fit Access Controls/Permissions 207 Important Activity Dashboard 150 Important AI Copilot 120 Important Mailchimp Top features 34/47 - Access Controls/Permissions - Activity Dashboard - AI Copilot - Alerts/Notifications - API - Archiving & Retention - Autoresponders - Campaign Analytics - Campaign Management - Canned Responses - Chat/Messaging - Collaboration Tools - Contact Management - Customer Segmentation - Customizable Fields - Customizable Forms - Customizable Templates - Data Recovery - Drag & Drop - Email Distribution - Email Marketing - Email Monitoring - Email Templates - Email Tracking - Generative AI - Inbox Management - Mobile App - Multiple User Accounts - Prioritization - Process/Workflow Automation - Queue Management - Real-Time Analytics - Real-Time Monitoring - Real-Time Reporting - Reporting/Analytics - Response Management - Routing - Search/Filter - Shared Inboxes - Signature Management - Social Media Integration - Spam Blocker - Support Ticket Management - Tagging - Third-Party Integrations - Whitelisting/Blacklisting - Workflow Management [See all features](https://www.capterra.com/p/110228/MailChimp/#features) Thunderbird 12/47 - Access Controls/Permissions - Activity Dashboard - AI Copilot - Alerts/Notifications - API - Archiving & Retention - Autoresponders - Campaign Analytics - Campaign Management - Canned Responses - Chat/Messaging - Collaboration Tools - Contact Management - Customer Segmentation - Customizable Fields - Customizable Forms - Customizable Templates - Data Recovery - Drag & Drop - Email Distribution - Email Marketing - Email Monitoring - Email Templates - Email Tracking - Generative AI - Inbox Management - Mobile App - Multiple User Accounts - Prioritization - Process/Workflow Automation - Queue Management - Real-Time Analytics - Real-Time Monitoring - Real-Time Reporting - Reporting/Analytics - Response Management - Routing - Search/Filter - Shared Inboxes - Signature Management - Social Media Integration - Spam Blocker - Support Ticket Management - Tagging - Third-Party Integrations - Whitelisting/Blacklisting - Workflow Management [See all features](https://www.capterra.com/p/230507/Thunderbird/#features) ### Recognition Mailchimp is recognized as a top-rated tool in 4 Capterra Shortlist reports Thunderbird is recognized as a top-rated tool in 3 Capterra Shortlist reports Best Value Email ManagementSoftware (2026)  ### Deployment & support Mailchimp Deployment - Cloud, SaaS, Web-Based - Desktop Mac - Desktop Windows - Desktop Linux - On-Premise Windows - On-Premise Linux - Desktop Chromebook - Mobile Android - Mobile iPhone - Mobile iPad Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos Thunderbird Deployment - Cloud, SaaS, Web-Based - Desktop Mac - Desktop Windows - Desktop Linux - On-Premise Windows - On-Premise Linux - Desktop Chromebook - Mobile Android - Mobile iPhone - Mobile iPad Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos ### Company Details Mailchimp - By Intuit - Located in United States - Founded in 1983 Thunderbird - By Mozilla - Located in United States - Founded in ## Popular Comparisons [Mailchimp](https://www.capterra.com/p/110228/MailChimp/)[4.48 (17,599)](https://www.capterra.com/p/110228/MailChimp/reviews/) vs [Brevo](https://www.capterra.com/p/132996/brevo/)[4.62 (3,439)](https://www.capterra.com/p/132996/brevo/reviews/) $13/month Price $9/month 4.4 Features 4.5 4.4 Ease of Use 4.6 [View full comparison](https://www.capterra.com/compare/110228-132996/MailChimp-vs-brevo) [Thunderbird](https://www.capterra.com/p/230507/Thunderbird/)[4.41 (159)](https://www.capterra.com/p/230507/Thunderbird/reviews/) vs [Gmail](https://www.capterra.com/p/202338/Gmail/)[4.81 (13,397)](https://www.capterra.com/p/202338/Gmail/reviews/) $0 Price $0 4.3 Features 4.7 4.4 Ease of Use 4.8 [View full comparison](https://www.capterra.com/compare/202338-230507/Gmail-vs-Thunderbird) [Mailchimp](https://www.capterra.com/p/110228/MailChimp/)[4.48 (17,599)](https://www.capterra.com/p/110228/MailChimp/reviews/) vs [ActiveCampaign](https://www.capterra.com/p/79367/ActiveCampaign/)[4.56 (2,561)](https://www.capterra.com/p/79367/ActiveCampaign/reviews/) $13/month Price $15/month 4.4 Features 4.5 4.4 Ease of Use 4.2 [View full comparison](https://www.capterra.com/compare/79367-110228/ActiveCampaign-vs-MailChimp) [Thunderbird](https://www.capterra.com/p/230507/Thunderbird/)[4.41 (159)](https://www.capterra.com/p/230507/Thunderbird/reviews/) vs [Google Workspace](https://www.capterra.com/p/247901/Google-Workspace/)[4.70 (17,549)](https://www.capterra.com/p/247901/Google-Workspace/reviews/) $0 Price $7/month 4.3 Features 4.6 4.4 Ease of Use 4.6 [View full comparison](https://www.capterra.com/compare/230507-247901/Thunderbird-vs-Google-Workspace) [Mailchimp](https://www.capterra.com/p/110228/MailChimp/)[4.48 (17,599)](https://www.capterra.com/p/110228/MailChimp/reviews/) vs [MailerLite](https://www.capterra.com/p/136603/MailerLite/)[4.71 (2,259)](https://www.capterra.com/p/136603/MailerLite/reviews/) $13/month Price $10/month 4.4 Features 4.5 4.4 Ease of Use 4.6 [View full comparison](https://www.capterra.com/compare/110228-136603/MailChimp-vs-MailerLite) [Thunderbird](https://www.capterra.com/p/230507/Thunderbird/)[4.41 (159)](https://www.capterra.com/p/230507/Thunderbird/reviews/) vs [Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/)[4.54 (2,451)](https://www.capterra.com/p/227138/Microsoft-Outlook/reviews/) $0 Price Contact vendor for pricing 4.3 Features 4.5 4.4 Ease of Use 4.5 [View full comparison](https://www.capterra.com/compare/227138-230507/Microsoft-Outlook-vs-Thunderbird) [Mailchimp](https://www.capterra.com/p/110228/MailChimp/)[4.48 (17,599)](https://www.capterra.com/p/110228/MailChimp/reviews/) vs [Constant Contact](https://www.capterra.com/p/31898/Constant-Contact/)[4.34 (2,922)](https://www.capterra.com/p/31898/Constant-Contact/reviews/) $13/month Price $12/month 4.4 Features 4.2 4.4 Ease of Use 4.3 [View full comparison](https://www.capterra.com/compare/31898-110228/Constant-Contact-vs-MailChimp) [Thunderbird](https://www.capterra.com/p/230507/Thunderbird/)[4.41 (159)](https://www.capterra.com/p/230507/Thunderbird/reviews/) vs [Microsoft 365](https://www.capterra.com/p/227157/Microsoft-365/)[4.65 (14,071)](https://www.capterra.com/p/227157/Microsoft-365/reviews/) $0 Price $6/month 4.3 Features 4.6 4.4 Ease of Use 4.5 [View full comparison](https://www.capterra.com/compare/227157-230507/Microsoft-365-vs-Thunderbird) 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