Warnings when starting mail service. `client_limit` too low.

[d19dotca]

I am seeing these warnings in the logs when I restarted the mail container in Cloudron. It seems like the client_limit should be increased according to these warnings.

Mar 21 18:21:35 doveconf: Warning: service auth { client_limit=1000 } is lower than required under max. load (1300). Counted for protocol services with service_count != 1: service managesieve-login { process_limit=100 } + service pop3-login { process_limit=500 } + service lmtp { process_limit=100 } + service imap-urlauth-login { process_limit=100 } + service imap-login { process_limit=500 }
Mar 21 18:21:35 doveconf: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1203). Counted with: service managesieve-login { process_limit=100 } + service pop3-login { process_limit=500 } + service imap-urlauth-login { process_limit=100 } + service imap-login { process_limit=500 } + service auth { process_limit=1 }
Mar 21 18:21:35 Warning: service auth { client_limit=1000 } is lower than required under max. load (1300). Counted for protocol services with service_count != 1: service managesieve-login { process_limit=100 } + service pop3-login { process_limit=500 } + service lmtp { process_limit=100 } + service imap-urlauth-login { process_limit=100 } + service imap-login { process_limit=500 }
Mar 21 18:21:35 Warning: service anvil { client_limit=1000 } is lower than required under max. load (1203). Counted with: service managesieve-login { process_limit=100 } + service pop3-login { process_limit=500 } + service imap-urlauth-login { process_limit=100 } + service imap-login { process_limit=500 } + service auth { process_limit=1 }

[Kubernetes]

I can confirm that on my Cloudron I see the same messages when restarting the mail service.

[nebulon]

I guess we can increase that, but really it is just a warning, which seems tailored to a deployment for over 1000 clients connected. This is likely not the common use-case with Cloudron.

[d19dotca]

@nebulon For sure, but it’d still be good to have a value that Dovecot is recommending to be within their guidance / best practice. Hopefully that can be corrected in the future.

I guess setting it to 1300 or 1500 for example should suffice and suppress the warning messages.

[girish]

Setting default_client_limit = 1500 fixes the warning . I have put this for next release.