Victor Duchovni wrote: > What determines whether a user's mail should go to cyrus or not (it cannot > be a cyrus delivery attempt)? > The answer seems simple. If a user is not in local_recipient_maps, it's not a local recipient.
In my case, the reason I want this is for mail abuse control. Most messages to a non-existant mailbox in our domain is untargeted spam hoping that particular usernames exist. I want to redirect all undeliverable messages to a mailbox where a script searches the headers for IP addresses and automatically checks for open relays and submits as appropriate to ORDB and ORBZ.
