Email platform that combines transactional sending, newsletters, and automation for SaaS apps in one plan
Sidemail is an EU-based email platform built for SaaS products. You send transactional emails like password resets and welcome messages through a JSON API or SMTP relay, then run newsletters, onboarding sequences, and lifecycle automation from the same account. Templates come from a no-code editor or plain Markdown. Sidemail manages DNS, IP warm-up, and bounce handling, so small teams without email ops staff can ship reliable email fast.
mail() or a raw SMTP server often land in spam. One user swapped mail() for a Sidemail snippet and messages started reaching the inbox. Sidemail takes over authentication and reputation.The All-inclusive plan starts at $19 per month for up to 1,000 emails, or $14 per month billed annually. Every feature is included at every tier, and higher sending volumes are priced by custom quote.
No. Sidemail offers a 7-day free trial with full feature access and no credit card required. You only enter payment details when you upgrade.
You are billed for the overage at the end of the billing cycle. The cost per 1,000 extra emails is calculated as your plan price divided by your plan's email limit, multiplied by 1,000. You can also upgrade at any time.
The API is a standard JSON endpoint, so any language works. Official SDKs and documented code examples cover JavaScript/Node.js, PHP, Python, Ruby, and cURL.
Yes, if your app already sends over SMTP. The SMTP relay accepts mail through the standard protocol, so migration usually means updating the host, port, and credentials.
No. Sidemail's terms prohibit unsolicited email, scraped lists, and purchased lists. The platform is designed for people who opted into your product or newsletter. Use a purpose-built outbound tool for cold campaigns.
No. The visual editor lets you customize text, logos, buttons, images, and charts without writing HTML. Templates are mobile-responsive, Outlook-compatible, and support dark mode. You can also compose emails in Markdown.
Sidemail manages DNS records, IP warm-up, feedback loops, and HTML structure for you, and vets senders before allowing production traffic. Bounce handling and suppression lists are built in, so you are not maintaining that logic yourself.
Yes. The Email MCP server exposes Sidemail's features to assistants like Claude and Cursor. You prompt the assistant, it retrieves data and calls the relevant API endpoint, and it asks for confirmation before completing actions such as sending.
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