Hi all,

I'm running:

- postfix 2.2.1, virtual_transport = maildrop - maildrop-2.0.2 - courier-imap-3.0.8-3 - cyrus-saslauthd - openldap2 as backend for all

I'm constantly getting those temporary failures: "(temporary failure. Command output: /usr/local/bin/maildrop: Temporary authentication failure.)"

This happens at that point when maildrop should deliver the email into the user's Maildir. But maildrop returns this temporary failure, the email remains in the postfix-queue. These emails will get delivered at the next requeue interval.

I started with maildrop-1.8.1, so my hope was that an upgrade to maildrop-2.0.2 would fix it, but it didn't. So I thought my ldap-directory was some kind of bootleneck, and added some indexes, still no cure. Some of You experienced the same issue with mySQL as backend ... and my ldap is working fine with all other applications.

Delivering mails via Commandline "maildrop -V 4 -d user@domain < testmail" does not produce those errors and works like a charm.

Has anyone figured out why these "temporary failures" might occur ? Is it rather a maildrop-issue or does it depend on the backend ? Any ideas, hints, solutions ?