confusing configuration for imap-login process (dovecot)
short description
The imap-login process get configured with the following settings:
service imap-login { client_limit = 1000 process_limit = 512 }
Which could be read as 512 possible imap-login processes each (possibly) serving 1000 clients simultaneously. Dovecot runs in "High security mode" by default and without explicitly setting service_count to 0 (unlimited/high performance mode) the client_limit directive is (afaik) of no use here - only one user is served per process anyway.
proposed fix
Omitting client_limit at all or setting it to 1 would make it clear, that only one client per process can be served.
environment
Server OS: all
Server OS version: all
ISPConfig version: (3.1.13 and below)
references
https://wiki2.dovecot.org/LoginProcess
(superb project - love it!)