--- title: "Sidemail.io Software Pricing, Alternatives & More 2026 | Capterra" description: "With the help of Capterra, learn about Sidemail.io Software - reviews, pricing plans, popular comparisons to other Transactional Email products and more." source_url: "https://www.capterra.com/p/10044856/Sidemail-io/" page_type: "product" language: "en" publication_date: "2026-10-15" --- # Sidemail.io Software Review 2026: Features, Reviews, Integrations, Pros & Cons Last updated on October 15, 2026 Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Description](#description)[Use cases](#use-cases)[FAQs](#faqs)[Features](#features)[Pricing](#pricing)[Integrations](#integrations)[Support](#support) Sidemail.io ## What is Sidemail.io? Sidemail.io is an email platform that streamlines email delivery for software applications. It supports transactional emails, marketing messages, and automated sequences via API, SMTP relay, and a messenger feature. A no-code editor enables responsive template creation, with pre-built options for common use cases like password resets and welcome messages. Markdown-based composition simplifies email writing. The platform includes centralized contact management with subscribe forms for organizing email addresses. Automation features enable workflows and scheduled email sequences. Templates are mobile-responsive, Outlook-compatible, and support dark mode. Sender vetting ensures reliable inbox delivery. The dashboard offers project management tools, and Stripe integration allows customer email import. Supporting multiple programming languages like JavaScript, PHP, Ruby, and Python, Sidemail.io has been operating for over eight years. ## What is Sidemail.io used for? [Transactional Email](https://www.capterra.com/transactional-email-software/) Overall rating Based on 0 user reviews Reviews sentiment Positive \- Neutral \- Negative \- Starting price $19 Flat Rate, Per Month Free trial available Free version not included Capterra Shortlist charts the highest-rated and most popular products... Our "Best of" badge program showcases products with the highest ratings... Our "Best of" badge program showcases products with the highest ratings... Do you work for Sidemail.io?[Manage this product listing](https://www.g2.com/products/sidemail-io/claim_requests/new?auto=true) ## FAQs about Sidemail.io Overview ### What company size and specific industries is Sidemail.io built for? Sidemail.io is designed for SaaS companies, startups, and digital product teams, making it a fit for small businesses and growing teams that need to send transactional and marketing emails from their applications. Features and Usability ### What are the key features of Sidemail.io? Sidemail.io offers email marketing features including email templates, template management, and a WYSIWYG editor for creating messages, plus campaign scheduling, campaign analytics, and email tracking. It also includes autoresponders, event triggered actions, subscription management, contact database tools, alerts and notifications, SMTP, API access, and third-party integrations. Pricing ### How much does it cost and what fees or limitations are included? Sidemail.io starts at $19 per month for the All-inclusive plan, which includes access to all premium features. A free trial is available. The plan covers newsletters, unlimited subscribers, automation, scheduling, unsubscribe handling, white-label design, open tracking, bounce handling, contact list cleaning, Stripe integration, contact API, and email reports. Integrations ### Which third-party tools and platforms does Sidemail.io integrate with? Sidemail.io integrates with Stripe. Getting Started and Support ### What training and onboarding options does Sidemail.io offer? Sidemail.io provides in person training, live online sessions, and documentation to help teams get started. In person training supports face-to-face guidance, live online sessions allow remote instruction, and documentation offers written reference material for setup and ongoing use. Getting Started and Support ### What customer support options does Sidemail.io offer? Sidemail.io provides email/help desk, FAQ/forum, knowledge base, phone support, and chat. Support coverage is described through these channels only, without user feedback available to judge response speed, helpfulness, or common support frustrations. ## Features AI summary Based on 889 Transactional Email reviews Capterra data shows that buyers of transactional email software rank the following features as their top priorities: - **Email Management** (**56%** of reviewers rated this feature as critical) - **Email Distribution** (**67%**) - **API** (**63%**) Sidemail.io includes **API**, but it does not offer **Email Management** or **Email Distribution**. Instead, it provides **Simple Mail Transfer Protocol (SMTP)** (**60%**) and **Email Marketing** (**59%**), which cover related email delivery and campaign needs. These features help businesses send messages through existing systems and manage outbound communications more efficiently, providing teams with practical options for handling transactional and marketing email workflows. Activity Dashboard Dashboard to view the status of ongoing processes, identify current incidents and track past activities Alerts/Notifications Alerts or notifications of various types such as pop-up messages, sounds, banners, or badges API Application programming interface that allows for integration with other systems/databases Autoresponders Create and automatically send premade copy in response to customer messages Campaign Analytics Track and interpret campaign performance metrics Campaign Scheduling Set campaign schedules by selecting start, pause, and end dates Sidemail.io 19 features ### All Features - Activity Dashboard: Dashboard to view the status of ongoing processes, identify current incidents and track past activities - Alerts/Notifications: Alerts or notifications of various types such as pop-up messages, sounds, banners, or badges - API: Application programming interface that allows for integration with other systems/databases - Autoresponders: Create and automatically send premade copy in response to customer messages - Campaign Analytics: Track and interpret campaign performance metrics - Campaign Scheduling: Set campaign schedules by selecting start, pause, and end dates - Contact Database: Centralized database of stakeholders and their contact information such as names, address, phone number etc. - Customizable Branding: Add customized logos and colors to align with company branding - Email Marketing: Create and send email blasts/campaigns - Email Templates: Pre-made examples and templates for emails - Email Tracking: Track delivered, received, and opened emails - Event Triggered Actions: Predefined actions automatically performed on the occurance of specific events - List Management: Manage contacts across multiple mailing lists - Message Personalization: Personalize text messages using templates and custom fields - Simple Mail Transfer Protocol (SMTP): Internet standard communication protocol to transmit electronic mails - Subscription Management: Process of managing customer subscription lifecycle for a recurring service or a product - Template Management: Create, save, and re-purpose templates for emails, forms, etc. - Third-Party Integrations: Set up connections to third-party platforms to improve business processes - WYSIWYG Editor: What You See Is What You Get is a no-code tool that allows users to create and edit content using a visual interface --- ## Pricing Free Trial [View pricing plan details](https://www.capterra.com/p/10044856/Sidemail-io/pricing/) All-inclusive $19.00 Flat Rate,Per Month It includes: - Email Outreach Tools: Newsletters, contact groups, unlimited subscribers, automation, scheduling, unsubscribe handling, white-label design, open tracking, bounce handling, contact list cleaning. - Platform Tools: Stripe integration, contact search & filters, contact API, subscribe forms, email reports, multiple projects, adjustable sending limit. ## Integrations [ Stripe](https://www.capterra.com/p/123889/Stripe/) ## Support, customer service and training options Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos Deployment - Web - Android - iPhone/iPad Typical users - Freelancers - Small businesses - Mid size businesses - Enterprises ## Top-rated software of 2026 ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox.