SimpleRelay

TL;DR

A self-hosted SMTP relay that puts a GUI on top of your outgoing mail so you can stop overpaying for SendGrid on tiny projects.

Who is this actually for?

Indie hackers and devops nerds running multiple low-traffic apps who want to monitor their own transactional mail.

The Good

• Bypasses the "per-email" tax of major SaaS providers.
• The web dashboard means you don't have to grep logs just to see if a signup email actually sent.

The Catch (Potential Downsides)

Deliverability is still your problem. If your server's IP is trash, your emails will hit the spam folder regardless of how nice the dashboard looks.