Receiving and processing emails with Ruby - SMTP server


Might not be the right place to post this, but doesn’t hurt to try.

Does anyone know of a nice Ruby SMTP server implementation out there? I’ve searched around but only found some code snippets. I’d like users from my web app to be able to interact with the application by sending emails, so each user would get some unique id like:, and sending a message to it would trigger some logic in the server related to the account of the user. The alternative is to use postfix, but I’d rather avoid the learning curve.

Any hints appreciated,

Thanks in advance!

  • Marcelo.

Here's one:


The mini-smtp server posted previously might work, but if you’re going to be doing a lot of email stuff I’d recommend using postfix anyways - it’s got a lot more power in terms of filtering mail, retrying deliveries, ratelimiting spammers, verifying SPF + DKIM headers, etc: all stuff that you’d have to re-implement manually with a Ruby server.

–Matt Jones

@Greg, thank you for that! I'll check it out.

@Matt, it's just a prototype as of now, I'd rather keep it simple so the idea of having to mess with postfix kind of scares me. But I'll keep it in mind :slight_smile:


- Marcelo.