# Compare Brevo vs Thunderbird 2026 | Capterra > Unsure of what to choose? Check Capterra to compare Brevo and Thunderbird based on pricing, features, product details, and verified reviews. Source: https://www.capterra.com/compare/132996-230507/brevo-vs-Thunderbird --- # Brevo vs Thunderbird Features and Cost Comparison Last updated May 14th, 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: BrevoThunderbird2/4 selected [Brevo](https://www.capterra.com/p/132996/brevo/)[4.6 (3,445)](https://www.capterra.com/p/132996/brevo/reviews/) [Thunderbird](https://www.capterra.com/p/230507/Thunderbird/)[4.4 (159)](https://www.capterra.com/p/230507/Thunderbird/reviews/) [## Brevo](https://www.capterra.com/p/132996/brevo/)[4.6 (3,445)](https://www.capterra.com/p/132996/brevo/reviews/) Starting Price $9.00/month Value-for-Money 4.5 Functionality 4.5 Ease of Use 4.6 Customer Service 4.5 Reviews Sentiment Based on [3,445 reviews](#user-reviews) Positive 3,245 Neutral 117 Negative 83 [## 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 ## Send this comparison chart to my inbox ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox. ## Summary * * * Key features rated by users Features selected based on 11,895 reviews from email management software users. about the Fit Score methodology. 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 \--%Fit Missing features Feature ratings Mobile App NA Email Distribution 4.6 Inbox Management NA Email Monitoring 4.5 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 4.6 User reviews[3,445](https://www.capterra.com/p/132996/brevo/reviews/) Ease of use 4.6 Functionality 4.5 Value for money 4.5 Customer support 4.5 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 $9Usage Based, Per Month - Free version - Free trial Price starts from \-- - Free version - Free trial Best for Best for Brevo is used by entrepreneurs, ecommerce retailers, marketers, sales teams, developers, agencies, and enterprise organizations. Best for Not provided by vendor ## User reviews Pros & cons BK Blerta K. Language Instructor > "The functionality and user-friendly interface in terms of email handling are wonderful and our small teaching faculty was able to design and mail gorgeous monthly newsletters to our..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7119704) AL Amanda L. Head of Marketing > "The only thing that really bugs me is the clunky workflow when duplicating campaigns. If I want to take a successful email and quickly resend it to the people who didn't open it (or..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7142092) VR Verified Reviewer Owner > "Email campaign creation, contact management, automation, and reporting are all in one place, which made it efficient to manage our marketing activities." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7142480) VR Verified Reviewer Owner and Administrator > "The main downside is that suspension messages could be clearer. When a transactional SMTP account is suspended, it can be stressful for a small business because important platform..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7141693) CL Cristiano L. CEO > "It´s a complete Marketing platform with the resources I need for my SaaS. In one platform I have CRM, Automation, SMTP, whatsapp, Deals and more." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7126987) FR Frank R. Billing Specialist > "There are some valid engagement data that is flagged strangely and that confuses me when I go through campaign performance that relates to billing." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7133142) SB Stefano B. Founder and CEO > "The customization capabilities have allowed us to create workflows that match our exact processes rather than forcing us to adapt to rigid system limitations. While the webhook..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7014349) SM Sherry M. Executive Manager > "We also may get unsubscribes that do not realize we use Brevo for informational purposes and not just marketing and we get concerned the guests may no longer get pertinent emails." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7116190) AM Antoine M. Marketing advisor > "You can create campaigns, manage contacts, automate emails and even use SMS tools." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7143128) AS Andreas S. Co-founder > "Pricing not very transparent, still no idea what the difference between the free & starter plans is. If you have more than 500 subscribers, it gets expensive." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7140818) SG Sebastian G. coo > "The drag-and-drop email builder is ituitive, and the automation workflows make it simple to create personalized experiences for different customer segments." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6828497) MT Marios T. President > "The interface can feel cluttered and not very intuitive, especially when navigating between campaigns, contacts, and automation." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7118246) VR Verified Reviewer Owner > "The platform offers useful tools for email marketing, contact management, and campaign tracking." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7142480) AP Anil P. Founder > "The inability to find how to use transactional emails, as each click on transactional->templates redirected to campaigns->templates." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6822712) TV Tuananh V. Marketing > "I also appreciate having multiple features (email, SMS, CRM) in one place, which promises to save time and effort in the future. While it's still too early to give a deeper assessment..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6852296) Lauren R. Owners > "With migration of our database to Brevo, we lost several hundred contacts bc they were from Gravity forms outside of the “allowed timeframe” I did feel that this hurt us in the..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6856016) Clare P. WordPress Development Lead > "Brevo's delegated account access means that my clients can take care of simple tasks by themselves, and I can easily access their account if they need help with more technical tasks." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7036177) DrJohnCobin C. Manager > "I signed up because I want to do mailings to thousands of Baptist churches and hundreds of others for my businesses. But I found that you do not permit such things." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7141446) Roman J. onwer > "When we ran into difficulties, the support team helped us with advice and opened our eyes to the fact that it’s not just about the quantity of emails sent, but also about the content..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7093439) RG Renato G. Cofounder > "The SMS confirming my phone number never arrived, so I had to use the chat to resolve a problem that could have been easier to resolve." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7097771) Faydra D. F. Most-Things Web Consultant > "I primarily use Brevo as a tool so that I and my clients can receive transactional emails through our WordPress sites, and it's outstanding for that." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7029342) JG Jerzy G. DJ, Producer and Remixer > "when sending a campaign having a limited amount of mails to send, there is a big inconvenience: if let's say your monthly limit is 300, you might want to select 2 contact categories..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6470031) GR Gustavo R. Chief Enthusiast > "Very generous free plan (300 e-mail messages per day which can not only be used for e-mail marketing, but also for transactional e-mails and SMTP sending)." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6827819) CL Cristiano L. CEO > "Some time there are new functions that I wasn´t using that don´t work fine, new configurations, but the support can solve in time." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7126987) RS Radenko S. CEO > "Positive, good support service, tools necceserz to start and run zour email campaigns, segmentatyion is good, good repaort even in the free plan" [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7079068) FR Frank R. Billing Specialist > "There is inconsistency in spam filtering of incoming campaign analytics." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7133142) Henrique de Souza R. Head of Customer Success > "I really like Brevo because it's easy to create templates and integrations, and it also allows you to view logs in real time." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7117568) AV Arnaud V. Founder > "The editor can be tinkering if you want to work with conditional variables and specific layout/styles. But maybe I'm overcomplicating my logic in the e-mails too..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7005928) LW Llewellyn W. Media and Communications Manager > "Additionally, setting up workflows and managing subscriber lists is straightforward, helping users save time and focus on engaging their audience effectively." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6828150) Renan D. Founder > "I like least about Brevo is the loading of unnecessary resources in e-commerce, the lack of clarity about the billing process, and the limited automation features for push..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6500673) WD Warren D. Marketing Manager > "affordability, we do not send a huge number of emails out per month but do have a lot of contacts across several entities and Brevo's fix rate monthly account works very well for us." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6883558) CG Charles G. Owner > "The biggest pain point so far seems to be process for adding new individual contacts. Because Brevo offers many features beyond emailing, it means that adding a new contact involves a..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6778102) NO Naj O. Digital CRM > "We appreciate the intuitive and comprehensive features the most, especially how easy it was to manage email campaigns, segment audiences and track analytics in one place." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7050024) JS Joao S. Team leader > "The user interface can be confusing at times and not very user-friendly, which occasionally makes simple tasks take longer than they should." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7049987) KB Konrad B. Fundraiser > "Brevo allows me to do my most important part of work - be in a constant contact with the donors of my organisation." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7097933) SG Sebastian G. coo > "Some parts of the interface feel a bit clunky or uninuitive, especially when navigating between campaigns, contacts, and automation workflows." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6828497) KB Konrad B. Fundraiser > "Marketing campaigns allow me to send my most important messages for the donors of my organisation." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7097933) LC Lucy C. Business Technology Consultant > "When using a popup form it is not possible to customise the URL for double opt-in subscribers." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6853381) SC Simone C. Writer > "I use it to send out my noncommercial newsletter about writing. Both the stats and the way they're presented are very helpful in my understanding my public." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6852183) RA Richard A. Secretary > "There are restrictions on sending emails that I didn’t know about when I registered" [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7139214) AH Adrian H. CEO > "There are simple ways to set up forms within the interface that allows sign-up connection without the need to use any other form plugin." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7003130) PD Paul D. Operations Manager > "The cost of the packs is quite high, so make your subscription work for you, can get expensive if your database fills up" [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6821044) RCR Rodel C R. Journal Editor > "Segmentation, templates, and scheduling aid us to notify authors and reviewers adequately with good value, without aggressive learning curves." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6877106) OA Odueki A. CEO > "Some users might not like or could find it limiting due to the learning curve — especially when it comes to setting up workflows, lead scoring, and tagging." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6854447) VR Verified Reviewer Owner and Administrator > "Overall, I would recommend Brevo for small businesses that need reliable transactional email and useful delivery logs, especially if they are starting with modest email volume." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7141693) DrJohnCobin C. Manager > "Lots of service interruption due to internal policy of Brevo not clearly explained before purchase.!!" [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7141446) GM Giulio M. CEO > "I'm using Brevo from almost 5 years, it simplify at the most my needs to make campaigns to have more leads, even for wide or very small numbers of sendings." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7024863) MN Muna N. Designer > "Occasional delays in email delivery or reporting may occur." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7083179) BY Bahnas Y. Project Manager > "The layout is clean and the tools are organized in a way that makes sense even if you are not deeply experienced with email platforms." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7048165) VR Verified Reviewer Marketing Executive > "The email template customization options are limited and less visually appealing." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7004529) IB Ilenia B. Marketing Automation manager > "The automation features are particularly interesting because they allow you to manage the database with internal actions as well as automate external communications via email or SMS." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6495091) EL Eddy L. Founder > "Campaign builder and pre-configured campaigns are sometimes confusing and most of the time not inline with our cms." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6823451) VR Verified Reviewer Graphic Designer > "Overall, Brevo is a solid email marketing platform that is user-friendly for designers, offering a quick way to create attractive campaigns and manage client communication, but it may..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6575696) MW Mark W. Owner > "Payments can fail and during the weekend, support can be slow." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7080740) MM Michele M. Operations Manager > "Not only did it allow us to mass mail to all our clients weekly news letters which cut our time in half but it also incorporates many other wonderful features that we were able to..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6680142) HPK Himadri Protim K. MD > "I haven't been able to find the merging option, which would allow me to avoid repeating the contact entry twice." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6839277) AK Anuj K. President > "Bravo allows us to merge our mailing lists and prepare the newsletter via the platform." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6817603) AB Arthur B. Product Manager > "I also find the pricing model somewhat unclear; most of the support tickets I’ve opened were to clarify doubts about how pricing works." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6824051) KE Khalid E. Founder > "It saves time and offers fantastic features like multiple mailing lists, easy-to-run advanced campaigns, seamless integration of web interfaces and chat elements, and highly..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6501425) LS Luke S. Marketing and Web Admin > "If you have a large list of contacts which is not up to date, you could get your account suspended for having to many unsubscribed contacts." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6730381) OT Ojo T. Copywriter, Mobile and Web developer, Data analyst > "I did so for but for Brevo, I unconsciously dived into it, started checking around and within 10 minutes I got a hang of what it does and how it was perfect for my needs(which is a..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6493808) VR Verified Reviewer Owner > "The contact and recipient count was sometimes confusing." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7142480) UJ Umer J. Corporate Sales Manager > "I recently run an email campaign for our upcoming webinar and Brevo helped me to design a really eye-catching design for that." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6815114) FG Fernando G. Owner > "automating email blasts and social media posts isnt a capability that it currently has." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6859549) HG Hannah G. Design and Projects Marketing Manager > "We made the switch to Brevo from a well-known large e-marketing platform and we found the ease of use better, the design capabilities better and the quality of customer service better,..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6409130) FS Frhan S. Clara > "Many messages end up in spam, making them invisible and failing to achieve the campaign's goal." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6819999) KB Konrad B. Fundraiser > "Free plan for unlimited contacts with not so small amount of e-mails per day (300)." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7097933) MnM Mônica M. GMT > "Since I am still learning, I sometimes find the automation features a bit confusing to set up." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7098560) DK Dhaval K. SR BDE and Consultant > "The best thing they have taken care of is when you draft your email you can have a mobile as well as desktop version that how your email would look like so these are small things that..." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6465254) MK Max K. CEO > "I think Brevo has an overly sensitive algorithm related to email deliverability and customer engagement." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7046744) Attila P. Owner > "Brevo handles both my transactional emails and marketing newsletters reliably, and the setup was straightforward." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7141767) MD Mo D. Marketing Associate > "Sometimes the functionality of moving certain elements in the email can be cumbersome." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6857443) UG Ulysses G. CTO > "For a company like ours with a large contact base and varied use cases, it's helpful to have a platform that handles multiple tasks under one roof." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6854937) AM Antoine M. Marketing advisor > "Some advanced features are less deep than very premium competitors." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7143128) VR Verified Reviewer Web Developer > "The platform is very intuitive, and the documentation is extensive, so I can usually find everything I need without contacting support." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7054728) YZ Yoav Z. Director > "Also pricing feels a bit confused: for example, looks like it's more worthwhile to stay on a free package than move to pay as you go because you lose your free allocation?" [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6814343) VR Verified Reviewer Owner and Administrator > "Brevo’s free transactional email service is very useful for a small online teaching platform like mine." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7141693) AB Arthur B. Product Manager > "There are also occasional stability issues — I’ve been locked out of the platform at times when I really needed access." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6824051) KS Kostas S. Custom ERP development > "The transactional e-mails are very useful in our company because they are used in our apps, for user information." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___7119429) CB Christian B. CEO > "What I disliked about the platform is that, due to the fact that it is a multi-tool platform, it takes a few hours to learn how to use it well." [See full review](https://www.capterra.com/p/132996/brevo/#Capterra___6828871) [View Reviews](https://www.capterra.com/p/132996/brevo/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) 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) 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) 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) 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 > "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) 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) 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) 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) 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) 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) 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) 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) Gonzalo M. Managing Director > "Integrates less well into Windows than some alternatives." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3712769) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) SP Shawn P. Owner > "The UI is incredibly outdated." [See full review](https://www.capterra.com/p/230507/Thunderbird/#Capterra___3394046) 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) 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) 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) 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) 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) 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) 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 4.62 (3,445) [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 Brevo Top features 32/47 - 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/132996/brevo/#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 Brevo 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 Brevo 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 Brevo - By Sendinblue - Located in France - Founded in 2012 Thunderbird - By Mozilla - Located in United States - Founded in ## 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