[superboum]

Hi, I would like to mention that some work on a Rust SMTP server has been already done with the Kannader project[1] (Disclaimer: I have no contribution on it but I know the maintainer).

I also work on a Rust IMAP server that is far from being as feature complete as yours. I also chose your `mail-parser` library to parse RFC822/5822, but we observed that in many cases, we did not have enough information to build some BODY/BODYSTRUCTURE responses. We also discovered that line count and many details are not very obvious on IMAP, did you run some tests to compare your IMAP server outputs to existing servers? Or, more generally, what is your approach to ensure compatibility / integration with the existing email ecosystem?

In any case, congratulation for your project, we will follow it closely! I experimented how big these protocols became with all their extensions, this is an impressive work!

[1]: https://github.com/Ekleog/kannader

[StalwartLabs]

> Or, more generally, what is your approach to ensure compatibility / integration with the existing email ecosystem?

Yes, Stalwart IMAP server's compliance to the IMAP4 protocol was tested using Dovecot's ImapTest tool.

[andrenth]

> I would like to mention that some work on a Rust SMTP server has been already done with the Kannader project

There’s also the vSMTP project: https://github.com/viridIT/vSMTP