I just have a question concerning the current implementation of quotas
in the Courier system. Mainly, why are quotas implemented the way they
are? Wouldn't it be easier and quicker to calculate the needed directory
sizes and add them up?
I am using qmail-ldap which implements the same
quota system as Courier/Sqwebmail, and reportedly,
there is a race condition when qmail-pop3d and qmail-local are accessing
the maildirsize file at the same time. I guess there's no locking on the
file, so it is filled with negative numbers and users' e-mail bounces.
