Email delivery is a minefield. The rules are always changing. What’s right for Hotmail, doesn’t work for Gmail. You need SPF compliance, Sender ID, DKIM, Domain Keys and DMARC. Some people say it’s best to send from a shared IP pool, some that it’s best to have your own IP. The goal posts keep moving and what you thought you knew last year has changed. Only this weekend there was a discussion on the Only Influencers email group discussing some possible Gmail changes last Thursday that have impacted Gmail delivery. Webmail clients, like Gmail, Yahoo and Outlook (Hotmail), never announce changes to their filtering methods so we’re all left to scramble around trying to guess what they’ve done. All of…
