Hello. I'm building mailserver for mailhosting with Postfix 1.1.11 and Maildrop-1.5.0.
I want to offer my customers mail filtering and want to use a maildrop, but I
have these problems: 1. Virtual User Agent (VUA) in Postfix doens't use (I guess) maildrop to filter
message through it, unless I have filled in postfix config mailbox-command.

Is there any way how to use it together?

2. Another solution and problem. Then I used maildrop in delivering mode,
everything OK, but when I have a user, who doesn't exist, it fails. I have read
all discussions about EX_TEMPFAIL and EX_NOUSER, and try to learn my Postfix
check recipient. I use this configuration:

smtpd_recipient_restrictions= check_recipient_access ldap:ldap permit_sasl_authenticated reject

But the problem was, that the permit_sasl_authenticated allows to send the
unknown users and without this directive I wasn't able to send to any other
domains (relaying, because I wasn't authenticated_user). I can't use directive
my_networks, because my mailserver will be hosted on backbone.

Do you have any advices, how to use maildrop with Postfix as a mailhosting
server? Or do you have a patch for Maildrop 1.5.0 to EX_NOUSER?

Thanks, Ruda.