The checkalldomainsmxs tool removes system domains from /etc/userdomains

Symptoms

The checkalldomainsmxs remove the system domains that were added without a user via WHM

Description

The checkalldomainsmxs remove the system domains from /etc/userdomains that were added without a user via WHM

We've opened an internal case for our development team to investigate this further. For reference, the case number is CPANEL-46163. Follow this article to receive an email notification when a solution is published in the product. 

Workaround

/scripts/updateuserdomains --force; sed -i 's/nobody/system/g' /etc/userdomains