I have recently noted a few clients complaining that emails from one of my sites always go into their spam folder.
I don't know enough about email to start trying to work out even what level in my stack this is happening at - so first I want to collect as much information as possible and write up a test plan for emails coming out of my system.
I was thinking about setting up accounts at the following places:
- same domain as the website
- custom domain on same server as website
- custom domain on another server
Do you think this is a complete enough list?