When I was writing about SPF record generators, I was researching ways to improve email delivery rates, avoiding spam filters, and just making sure that emails end up in people's INBOX folder and not rejected completely by the remote mail server, or ending up in spam.

While learning all about the different things you have to do to get emails delivered right, I came across an excellent article about how one guy and his organization achieves a 99.3% delivery rate with his emails.

You should read it if you want to know how to email from your own server and get your emails into your recipient's inbox.