- Plesk for Linux
Sending mail with Qmail to specific addresses with messagelabs.com services (of Symantec) returns the following error:
CONFIG_TEXT: deferral: CNAME_lookup_failed_temporarily._(#4.4.3)/
Bug with id PPPM-8163 which will be fixed in a future update.
As a workaround use Postfix instead Qmail.
- Connect to the server via SSH
Install Postfix through Plesk installer
# plesk installer
If the problem still persists, please run:
# /usr/local/psa/admin/sbin/mchk --with-spam