This guide will help you get started using the Outgoing Filtering service. Creating Outgoing...Setting up SPF
SPF records are TXT records placed into a domain's DNS settings. SPF (Sender Policy Framework)...Setting up DKIM
If your sending domains already sign with DKIM, then this should not be changed. SpamExperts...Configure Identity Header Identification Method in SPAM Filtering Control Panel and Your MTA
Using an identity header allows the system to track and prevent spammers without affecting other...