Robert,

This looks like a cox mail to gmail issue.

It could be flagged as spam because either the sending IP or local IP is
dynamic (spamassasin flags for that depending on the rulesets of their MTA).

While I don't see your mail setup with Google Apps or referenced here, it
appears that this message is attempting to send through Google Apps to a
non-associated google apps or cox address.

I believe the part of interest is:

X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=google.com; s=20120113;
 h=mime-version:in-reply-to:references:date:message-id:subject:from:to
 :content-type:x-gm-message-state;
 bh=AAo5RQiI59RpuvyOU7wZOWszZiTwq0RDJOowLhi/QZY=;
 b=asoTa8iyYwDDpnQ5ZZZmTR5imzoVQWKcR9l4PXThqjRNUeN8Qum2l1WItR4r0bZgmB
 b7lgcfaCWVObXD710eC9avn0d/+LemN6Q5+jdgScKtkRK1SbL7R/ICKdlymznw3TnLj9
 iRmIjM+YHsYy5feWLfnJ7WC/p6oPDDYZTjgsAfysYWNR6+aOKXjxGEkyQxqvuaQpeu6f
 /np3T/35TGv8m04SkpvfwXml43beG50Drvv1TyKmvnqn9nr71ZRVxEVr+3yr2TnUsb/a
 qdgHImjspCxHiecAvtAnWPABc13okKs91tRJWwqQ8Fik1JMItP+14PbrQQC3abJpkF7e
 LgKw==

Thats a gmail entry DKIM value.

You can also fully integrate with Google Apps, rather than go directly to
cox (which it looks like you are doing), however you must use alternate
ports because cox doesn't allow SMTP mail to traverse their network.

Gmail forwarding for postfix:
http://bookmarks.honewatson.com/2008/04/20/postfix-gmail-smtp-relay/

Did your upgrade overwrite your mail gateway configuration?

You can setup DKIM keys with Googlemail if you like to rule out issues
there.
http://www.000webhost.com/forum/customer-assistance/31680-help-setting-up-google-apps.html


On Sun, Dec 2, 2012 at 5:01 PM, Robert Holtzman <holtzm@cox.net> wrote:

> On Sun, Dec 02, 2012 at 01:07:32PM -0700, Lisa Kachold wrote:
> > Hi Robert,
> >
> > The SPAM setting could be due to a variety of things.  Do you have the
> spam
> > statement on the return receipt or envelope?
> >
> > We need a code.  Displaying the full header will show  this?
>
> Check http://pastebin.ca/2262568
>
> >
> > It is probably due to the DNS changes for the full name and the list
> > configuration.  It could also be due to the reverse ip address not
> matching
> > the forward, which they usually mark as a dynamic or changing IP address
> > (which they drop as a dynamic address used by script kiddie server rather
> > than a real mail server.
>
> Damn. Never thought of that. Only problem is that messages immediately
> prior to the first one marked as spam was sent to the new address.
>
> --
> Bob Holtzman
> If you think you're getting free lunch,
> check the price of the beer.
> Key ID: 8D549279
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.10 (GNU/Linux)
>
> iEYEARECAAYFAlC76+cACgkQv5BYD41UknnNOwCglD2tyrv4CVK8LiMSd8rOwP8i
> ZLYAoLYFpnB/wTzcNZWG75O7SwbLac2P
> =c/kJ
> -----END PGP SIGNATURE-----
>
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