After upgrading to POA 5.5, users with qmail service cannot log into their mailboxes using any type of connection - IMAP, POP3, webmail, etc.
An attempt to authenticate using POP3 fails with the following error message:
-ERR Login failed
If debug logging is enabled for the courier-auth service on qmail servers as per Knowledgebase article #116961, then the following entry appears in the /var/log/maillog file on qmail servers:
authdaemond: FAIL, all modules rejected
The libauthcustom.so and wso_login files were mistakenly placed into the /usr/local/pem/var/cores/%ROOTPATH%/usr/lib/ folder during the upgrade to POA 5.5.
Note: %ROOTPATH% is not a placeholder.
Move the files into the proper folder on all POA-managed qmail servers:
mv -f /usr/local/pem/var/cores/%ROOTPATH%/usr/lib/libauthcustom.so /usr/lib/ mv -f /usr/local/pem/var/cores/%ROOTPATH%/usr/sbin/wso_login /usr/sbin/
Restart the courier-auth service: