Hi,
[Steffen Kaiser] - [2016-07-26 09:05]
Could it be that I need to offer more login processes or that I should raise some of my configuration values? The mail_max_userip_connections does not seem to solve the problem.
usually you get some warning in the logs, if such limit is reached.
I changed some parameters in the imap-login service and the problem seems to be gone - at least I have not received any error message in three days.
Following the examples on http://wiki.dovecot.org/LoginProcess I changed 10-master.conf to
service imap-login { service_count = 0 #client_limit = $default_client_limit process_min_avail = 8 vsz_limit = 256M
I think that these parameters are very generous and I would rather like to stick to "high security" than to "high performance". What would be your recommendations? Would it suffice to try to set service_count back to 1? Also I did not touch the client_limit, as I did not understand the formula "Default client_limit * process_limit = 1000*100 = 100k connections" given on the wiki page.
Any suggestions are welcome and highly appreciated.
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