> On 12/06/2019 20:02 Paolo Daniele via dovecot <dovecot@dovecot.org> wrote: > > > Hi, > i've a question for you. > I've two dovecot imap/pop server behind a zen load balancer. > Load balancing is made by lx4nat so the public ip address of my load > balancer contact directly the dovecot servers. > Since few months i've a message from thunderbird that i've reached the imap > limit login for ip. > I've triend to increase the max user ip parameter but sometimes i've the > same problem. > It's a strange things that actually i'm able to mitigate by reduce the > number of cached connections in Thunderbird but it's not normal. > What do you think about that? > Maybe there's some tuning that you can suggest. > Thank you, > Paolo >
Have you ensured, by checking logs, that the connections are seen by dovecot to come from public IP addresses? Also, thunderbird is known to open lots of concurrent connections. Aki