On Fri, 2008-05-16 at 11:38 -0400, Bryan Polk wrote: > First, thanks for this great product. We migrated from Courier last week > with only small bumps along the way. We have a few hundred active users > with a mix of pop3 and imap clients. The server is running on sparc > Solaris 9. > > We're seeing a problem now with the number of "imap-login" processes > rising slowly to it's limit and then (understandably) not letting any more > logins happen. Legitimate users seem to have no problem logging in until > the limit is hit. Another odd thing is that this is not a problem for > pop3-login processes, just imap...
How many imap processes do you have at that time? Each SSL connection uses up one imap-login process. One sure way to fix this would be to change to high-performance mode as described by http://wiki.dovecot.org/LoginProcess
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