SMTP 201 ******** Anti=Spam ========= Blacklisting ------------ Whitelisting ------------ Greylisting ----------- SpamAssassin? ------------- Reliable Mail Delivery ====================== Basic Etiquette =============== Authentication (SPF, DKIM) ========================== Bounce Management ================= Feedback Loops ============== Reputation Management ===================== Advanced routing ================ Hosted services = why they are good/bad/ugly ============================================