[Dovecot] Meaning of mail_max_userip_connections?

[Timo Sirainen]

On Mon, 2010-09-27 at 15:30 +0200, Harald Strack wrote:

> 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? 

No, wrong. It's a user+ip combination. Each different user behind the
same IP can use up to 10 connections with
mail_max_userip_connections=10.

BTW. What Dovecot version? If this isn't working as expected, maybe
dovecot -n output could show something useful..