On Jan 21, 2004, at 2:09 PM, Pat Lashley wrote:
Another advantage of Exim is that if using LMTPd over TCP/IP for Cyrus delivery, you can use a 'verify recipient/callout' ACL to both test for the existance of virtual users and also to detect Over Quota situations and issue a temporary failure code at SMTP RCPT time instead of accepting the message and leaving it in the MTA queue or trying to bounce it.
Can this be done with Postfix? I am using lmtp delivery to cyrus, but being able to check quotas at the SMTP level would be nice.
Thanks
--will
