Il 10/07/19 10:27, Aki Tuomi ha scritto:
On 10/07/2019 11:24 Paolo Daniele via dovecot <dovecot@dovecot.org> wrote:
Il 10/07/19 10:20, Aki Tuomi ha scritto:
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
Yes,
connections are coming from the ip address of load balancer (also
checked with a netstat -an)
I know that thunderbird has this problem and i haven't problem since the
numbers of email domain increase.
I'm not sure the impact of rising the max user ip to an higher value in
terms of ram consumption and cpu
Any suggestion?
Thanks for your answer!
Paolo
What's your current limit? The default value is 100.
Aki
Actually:
mail_max_userip_connections = 500
Thanks,
Paolo
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