Mail for domain mailboxes should not be treated differently than any other message during the SMTP transaction. In fact it can't - during HELO no RCPT is even known, and a message could have several RCPTs of which not all are destined to a domain mailbox.
It could be that some daemon, for instance GrayWall, intercepts a message before the rule triggers, though.
You can in many cases use the log action (L) to test a transaction rule.
/Rolf
<p>Mail for domain mailboxes should not be treated differently than any other message during the SMTP transaction. In fact it can't - during HELO no RCPT is even known, and a message could have several RCPTs of which not all are destined to a domain mailbox. </p><p>It could be that some daemon, for instance GrayWall, intercepts a message before the rule triggers, though.</p><p>You can in many cases use the log action (L) to test a transaction rule.</p><p>/Rolf </p>