I'm rather sure that this is a bug:
After upgrading to 5.3.29, the first time I authenticate via APOP it
fails with error message: "Error. update_rules failed"
After that message the rest works fine.
I can reproduce this by cleaning my ip from opem-smtp and rebuilding
tcp.smtp.cdb, reinstalling 5.3.27, authenticating (-> it works without
any error message), re-doing the whole ip-removing-procedure and
installing 5.3.29: The message comes up again.
My configure-options are
Maybe it's the same bug that was posted before?