Always use the "Test" tab. Send a test email to 5 different providers (Gmail, Yahoo, Outlook, AOL, and a custom domain) to check for spam flags.
: Obtain the latest setup (currently 4.4.2) from the official SendBlaster download page . sendblaster pro edition v4 4.2 full activated
Upon first launch, the software will ask for a License Key. Always use the "Test" tab