natan:
> That's hosting send to my users e-mail (normal e-mail, not spam,
> sometimes mailing) but sometimes user not exists (because user was
> deleted)
That is a configuration mistake. Postfix should not receive mail
for a deleted user.
> or user have quota
There are policy plugins or other solutions to block mail for
over-quota users, depending on what mail delivery method you use.
> - my server (Mailer-daemon) sends returns -
> and external hosting limit incomming e-mail per IP
So this is only a problem with sending MAILER-DAEMON messages?
Please fix your Postfix configuration to not receive mail for a
deleted or over-quota user.
Wietse
