You can customize the email domain for all emails sourced from the Barracuda Web Security Gateway. If you want your internal mail to be sourced from a specific domain, enter your SMTP relay server in the SMTP Server field in the Email Notifications section of the BASIC > Administration page. See the example below.
The following variables will use this server:
System Alerts Email Address
Threat Alerts Email Address
System Contact Email Address
Web App Monitor Email Address
Policy Alerts Email Address on the BLOCK/ACCEPT > Exceptions page
Test SMTP connection
Renewal emails
Infection Alert (ATP Alert, Virus Alert)
Reports
Backup Failure