Checklist for good email delivery in php

Question

I have a PHP application that sends email using the pear Mail function. Unfortunately all my emails end up in the junk folder.

Can i get a checklist for things i should do to make sure my emails are recieved correctly.

Thank you

Answer 1

I wrote down a few points in an earlier question.

Answer 2

MailChimp has several good articles on effective email marketing campaigns.