- 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 of Qmail.
- Connect to the server using SSH.
Install Postfix using Plesk Installer:
# plesk installer
If the problem still persists, repair the mail server configuration:
# plesk repair mail