Changelog

What's new in Mailcoach.

Follow the weekly product updates, improvements, and fixes that make Mailcoach better for every email you send.

Lettermint and automation builder updates

New

  • Lettermint is now available as a sending provider, including setup for authentication, throttling, feedback, and delivery tracking.

Improvements

  • Duplicating automations is more resilient, especially for older or complex automation flows.

Fixes

  • Lettermint setup now validates the right fields.
  • Automation builder branches no longer show stale data.
  • Template previews now render MJML templates correctly before sending.
  • Team navigation is more reliable when switching between workspaces.

Preview and automation polish

Improvements

  • Webview previews render custom fonts more reliably.
  • Automation processing has more predictable retry behavior.

Fixes

  • Newsletter website redirects work correctly again.
  • Inline code is escaped correctly in Markdown-rendered mails.
  • Sending a test email no longer saves draft changes unexpectedly.
  • Starting an invalid automation now shows a notification instead of an error page.
  • Subscriber imports are skipped cleanly when their list was deleted.
  • Invalid email addresses are handled more accurately as permanent bounces.

Sending and automation reliability

Improvements

  • Temporary sending issues now retry automatically instead of failing immediately.
  • The send test modal now explains how to send a test to multiple email addresses.

Fixes

  • New subscribers are checked against automation segments more reliably.
  • Test transactional mails now go to the intended test recipient.
  • Campaign and automation sends handle incomplete content and subscriber data more reliably.
  • Automation lists can be sorted reliably again.
  • Automation mails no longer intermittently fail when sender details are unavailable.
  • Sending health checks are more stable.

List and automation reliability

Improvements

  • Email lists are now called lists throughout the interface.
  • Automation screens load subscriber counts faster.
  • In-app support requests are handled more reliably during temporary service interruptions.

Fixes

  • Automation subscribers no longer move through duplicate actions.
  • Transactional logs now remain visible when a confirmation mail fails.
  • Split test winner checks are more reliable.