Make sure your e-mail server has a reverse lookup in DNS so that your IP can
be validated to your host-name.  This is a huge problem in my limited
experience with SMTP.

You may want to consider adding an SPF or caller-ID record to DNS as well.
In case you are not familiar with SPF here is a link:
"http://spf.pobox.com".  It isn't very widely implemented yet but many
antispam vendors and even AOL are in various stages of implementation.

If the messages are HTML you might want to make them mulitpart MIME, HTML
only messages send up a red flag.

-Nate

-----Original Message-----
From: Craig Earls [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 12:05 PM
To: CF-Talk
Subject: Proving you are legitimate from CFMail

I am developing a service that sends email to registered users about
upcoming events.  I keep getting errors about my mails being bounced as
spam.  Even test emails I am sending to myself are getting bounced by my
ISP.  What procedures does a business need to go through to prove they are
legitimate?
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