Here are a couple of things you might try and should be made aware of:
Dreamhost as well as many other webhosting providers spend time on the 'block lists' - this can result in intermittent times when your messages are sent to spam recovery.
You appear to be sending these messages directly from your webmail account which is inadvisable (especially if you are sending newsletters/mailing lists as well) - as you can see in this line:
Received: from www.webmail.panjokids.com (localhost [127.0.0.1])
many spam filters pick up the local host SMTP tag and automatically figure that it is a UCE or spam message.
- Because squirrel mail is freely available - some spammers elect using it to facilitate their own commercial mailing campaigns which can result in more false positives with the service.
The other problem resides with the 'DomainKey' technology that Yahoo utilizes. I am unsure if DH/Squirrel Mail are officially registered with that service; although, i would think that they are:
[Who implements DomainKeys?
DomainKeys will typically be implemented/enabled by the team within a company, ISP, or email service provider that deploys and runs the incoming and outgoing mail servers. Some companies may have service providers that handle their email. As MTA vendors add support for DomainKeys to their products, the implementation of DomainKeys will become simpler.]
I did not see Squirrel Mail listed here:
[Which mail transfer agents (MTAs) support DomainKeys?
Sendmail has released a milter implementation for both the commercial and freeware versions of their MTA. A Qmail patch, an Exim version as well as a qpsmtpd plugin are also available. CERN, the creators of the WWW has released a C# library for use in MS Exchange 2003. Port 25's PowerMTA, Etype.net's acSMTP, ActivSoftware's XMServer, OmniTI's Ecelerity, StrongMail, Alt-N Technology's MDaemon MTA for Windows, Postfix, Communigate Pro, IronPort, and Merak Mail all have DomainKey versions of their software. Finally, Yahoo! has released an open source reference implementation for DomainKeys that can be plugged into other MTAs.]
Lastly, it could simply depend on the enduser themselves...if they have their SPAM settings too high, most incoming mail will be more likely to be tagged as UCE.
IAmAtMyWitsEnd aka promoCodeSLAYER