Hi again, It figures, after finally giving up and posting this, I found what appears to be a simple solution.
You can configure dovecot use various back ends, I'll just tell it to save quota information to mysql. I can then in postfix, use check_recipient_access in smtpd_recipient_restrictions to look at that table and use mysql language in my query to produce an appropriate response. Let me know if this sounds about right. Best Regards, Fred Kilbourn
