Hi Timo, On Mon, 2010-09-27 at 13:50 +0100, Timo Sirainen wrote: > On Mon, 2010-09-27 at 12:17 +0200, Harald Strack wrote: > > > > Our users mostly accessing the IMAP server by a webmailer or proxies. > > > > Thus, all users (>10000) come from only 5 different IP. However, I got a > > > > lot of complaints about denied connections after setting > > > > mail_max_userip_connections = 10. > > > > > > We want to limit the number of imap processes per user to 10, but not > > the number of processes per client IP (because of the proxies). > > For that mail_max_userip_connections should have worked. If you get > complaints then it's because some client opens more than 10 connections > (or user has multiple clients open from same IP) or your webmail opens > >10 connections simultaneously. Accordingly, mail_max_userip_connections limits the number of connections from an IP. To deal with a scenario, when 400 Users behind a NAT-gateway come from the same IP (the gateway), we have to set mail_max_userip_connections = 400, right? > > You didn't say if the complains were from webmail users or from IMAP > client users.. Assuming webmail, I guess the problem is that it just > opens so many connections. Both. > With v2.0 you could specify different limits > to a certain network range (i.e. disable it for webmail, keep it for > rest). Will there also be a limit per user? > > BTW. The default for mail_max_userip_connections is 10, so do you mean > before you had it set to 0? Nearly. We had it set to 1000 and we set it to 1000 again now.
best regards Harry
