Dovecot release v2.3.7

[Michael Grimm]

Michael Grimm wrote:

> But, replication still doesn't works as known from previous versions.
> I will give it a try over night, but I am seeing …
> 
> | Queued 'full resync' requests 1
> 
> … after 1 minute, already.

The following modifications regarding my setup made replication work 
again (at least for the last 8 hours):

#) Re-compiling dovecot with the patch from 
https://dovecot.org/pipermail/dovecot/2019-July/116479.html
#) Activating mailbox attributes as mentioned in 
https://dovecot.org/pipermail/dovecot/2019-July/116492.html

Now replication is working from my point of view, besides occational 
error messages like:

| imap-login: Error: file_ostream.net_set_tcp_nodelay(, TRUE) failed: 
Connection reset by peer

(This has been reported before: 
https://dovecot.org/pipermail/dovecot/2019-July/116491.html)

Regards,
Michael