Hello!
My customers are complaining about a message in Thunderbird saying that it is not possible to connect to the IMAP server because the limit of connections per IP has been reached.
I have been struggling with this for some time now and I have tried:
/etc/dovecot/conf.d/20-imap.conf
And set: mail_max_userip_connections = 200
Still having the same issue.
Any ideas?
From the client side, we have also limited the connections per client to 1.