Adding Trusted Sender in SmarterMail
Please refer to below how to add Trusted Sender (Email or Domain) in Smartermail.
1. Login to the web interface as administrator through URL : mail.yourdomainname.com and administrator user name with password.
2. Click Settings icon> Domain Settings > Users.
3. Click New to add new email/ domain
4. Insert email address or domain
5. Click Save to keep the setting.