my blog

We have experienced some problems getting emails through yahoo's SPAM filter. Drupal emails for registrations have been flagged as SPAM. I had a dig and discovered a post on drupal.org which suggests making a request to be "White Listed" on the Yahoo site.

• Yahoo whitelist request form
• AOL Whitelist request form

I am beginng to think I am barking up the wrong tree after reading this in the drupal_mail function

// To prevent e-mail from looking like spam, the addresses in the Sender and
  // Return-Path headers should have a domain authorized to use the originating
  // SMTP server.  Errors-To is redundant, but shouldn't hurt.

and this article about how to send emails and appear legitimate to mail servers and how to set up mail dns correctly so not to appear as spam.

What you need to do is set up an SPF record in your DNS for example

Example for SPF for adomain.co.uk
--------------------------------

adomain.co.uk. IN TXT "v=spf1 ip4:66.66.66.66 a mx ~all"

where 66.66.66.66 is the ip address of your drupal server

For more information visit http://www.openspf.org/