To briefly explain my system - I have my workstation and server, both running Debian Wheezy (current stable). If I send mail, Postfix (2.9.6) passes to my server via an ssh tunnel on port 2525 (relayhost for this).
Now, the relevant part. On the workstation, there are a few key aliases I have set up in order to make certain commonly used addresses easy to use (e.g., my Spamcop receiving address). Unfortunately, those aren't working so well, because if I send one to 'fda', I get this: Reporting-MTA: dns; chez-vrolet.net X-Postfix-Queue-ID: 9B88F8A13B X-Postfix-Sender: rfc822; dennistheti...@shere-khan.chez-vrolet.net Arrival-Date: Tue, 25 Mar 2014 07:09:34 -0700 (PDT) Final-Recipient: rfc822; fda@localhost Action: failed Status: 5.1.1 Diagnostic-Code: X-Postfix; unknown user: "fda" It's notable that I restored my /etc/postfix from a backup that had previously worked perfectly well with no changes. (I had to reinstall.) So the short versio: What would cause postfix to happily ignore my /etc/aliases.db, doubly so after rerunning postalias? Note that I have not purged and reinstalled Postfix yet. -Dennis