This article covers how to set the contact email used in SOA records.
The email address used in SOA records can be set in the Contact Information section on the following page in WHM.
Home » Server Configuration » Basic WebHost Manager® Setup
This change will only affect domains created after the change. Existing domains will need to be updated in the following location in WHM.
Home » DNS Functions » DNS Zone Manager
Note that the SOA email address should have the @ (at symbol) replaced with a period, and it must end in a period as well. For example, if your contact email is "firstname.lastname@example.org", the SOA version of the contact email would be "user.domain.tld."