Transactional emails

Email sending API

Sidemail makes it incredibly easy to create, maintain, analyze, and deliver beautiful transactional emails via API — start sending transactional emails like password reset, welcome, and more from your application in just a few minutes.

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Email delivery that you can count on

Nobody likes to wait for a password reset email that takes too long to deliver. Even worse, if it ends up in the spam folder, you can't find it, and when you do, it's already expired.

Sidemail will help you to solve this. No more upset customers that didn't receive their email on time, every time.

Key benefits

Reliable email delivery
Fastest transactional emails
Best practices for preventing spam folder
Minimizing your costs

Simple to integrate

Start sending emails from your application in just a few minutes thanks to Sidemail API—modern JSON API for sending transactional emails that is rich in features, well documented, and designed with developer experience in mind. Visit the docs.

Code examples
await sidemail.sendMail({
	toAddress: "user@email.com",
	fromName: "Startup name",
	fromAddress: "your@startup.com",
	templateName: "Single sign-on",
	templateProps: { url: "https://your.app/sso?token=123" },
});

No-code email editor

Built for the ultimate workflow, the Sidemail no‑code email editor lets you create reusable email templates, such as password reset. Then, in your application, you reference the email template either by name or its ID when making the API request.

  • Upload a logo, and match brand colors
  • All email clients supported
  • Pre-generated API code snippets
No-code Editor

Pre‑made email templates

To give you the best starting point, we researched hundreds of emails and crafted a well-spelled email for every occasion. And, if you need it, you can modify every bit of it. Browse transactional email templates.

  • Account activation
  • Receipt
  • Message notification
  • Canceled subscription
  • Usage warning
  • Sign in alert
  • Single sign-on
  • Welcome
  • Billing issue
  • Trial expired
  • Product feedback
  • Password reset

Key metrics

Take out the guesswork and learn how your users interact with emails. Analyze charts and get a broad understanding of your email delivery or visit sending history to gain in-depth insights into a specific email.

  • Total deliveries and recipients
  • Bounces, spam complaints and opens
  • Individual email preview in sending history
Key Metrics

Sending history

Get a comprehensive overview of every email you send. See the email preview, timeline, status, and more. Want to see information about the specific email you sent year ago? No problem, Sidemail gives you unlimited access to email history.

  • Unlimited searchable email history
  • 30-day full email preview
  • Email activity timeline
Sending History

  • Uncompromising quality

    Sidemail is built upon Amazon’s robust infrastructure combining in‑house configurations it ensures highly reliable email delivery.

  • Your domain & DKIM

    Use your own domain for sending. To establish the best delivery results, we automatically set up for you DKIM and SPF.

  • Easy-to-use variables

    Add recipient-specific information to your email by using variables. This is useful for links, dates, amounts, etc.

  • Focus on DX

    We continuously push boundaries and focus on developing features that make the work of developers and product owners easier.

  • First‑principles simplicity

    Sidemail is one of the most simple yet complete email providers on the market. The whole integration process takes about 30 minutes.

  • 5-star rated support

    If needed, you'll get personal help from real people, directly from the development team.

Sending in minutes

Try Sidemail free for 7 days. No credit card required.

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