Test Connectivity to your Mail Server
Once a domain has been added, test to make sure your mail server will accept email from SpamTitan Cloud. While logged into SpamTitan Cloud as Domain Group Administrator, follow these steps:
Go to Settings > Relay Settings and click the check icon in the Options column for the domain you want to test.
In the Send Test Email dialog box, enter a valid email address and click Send.
Verify the email has been delivered to the specified email address.