Dovecot 2.3.1

[Tristan]

Was this already tested?

 

[zEitEr]

Tested? Well... definitely, yes. It's already in custombuild. Feel free to try it on your server and see how good is it working for you.

 

[ViAdCk]

We are also seeing the same issues with emails that have attachments bigger than 40mb:

R=virtual_user T=dovecot_lmtp_udp defer (32): Broken pipe: NULL: Broken pipe
R=virtual_user T=dovecot_lmtp_udp defer (104): Connection reset by peer: NULL: Connection reset by peer

Any idea how to fix this?

 

[zEitEr]

Downgrade dovecot.... and/or report the bug to dovecot developers.

 

[ditto]

Downgrade dovecot.... and/or report the bug to dovecot developers.

Somone has already reported the bug (bigger then 40MB attachment don't work), here it is from the mailing list: https://www.dovecot.org/pipermail/dovecot/2018-May/111896.html

Working on a fix...
Problem found. It is an explicit limit of 40Mb (for the 30Mb I saw in my tests, there was also a base64 encoding I forgot about).

Will fix both the unhelpful error and the fact that there should be no limit (currently) for LMTP.

and

Release schedule tells me it will be part of 2.3.2, which should roll out some time mid June.