Package: courier-authlib Version: 0.66.4-9+deb9u1 Severity: critical
The fix for #984810 breaks maildrop "delivery mode" because maildrop is no longer able to look up user details after dropping privileges (or at least this is what I think is happening, from my understanding of how "delivery mode" works).
This is *really serious* as it completely breaks mail delivery on previously working system -- a production mail server, in my case.
Apr 15 14:59:18 stanchina dspam[13818]: Delivery agent returned exit code 67: /usr/bin/maildrop -d delivery-test Apr 15 14:59:18 stanchina courierlocal: id=0000000000025C27.000000006078377A.00003214,from=<delivery-t...@stanchina.net>,addr=<delivery-t...@stanchina.net>: ERR: authdaemon: s_connect() failed: Permission denied Apr 15 14:59:18 stanchina courierlocal: id=0000000000025C27.000000006078377A.00003214,from=<delivery-t...@stanchina.net>,addr=<delivery-t...@stanchina.net>: Invalid user specified. Apr 15 14:59:18 stanchina courierlocal: id=0000000000025C27.000000006078377A.00003214,from=<delivery-t...@stanchina.net>,addr=<delivery-t...@stanchina.net>,status: deferred
Best regards, Flavio Stanchina