roadrunner (rr.com) just started a global policy that all email originating from a
residential'' IP address is rejected, the assumption being that it's an open relay or virus infested. My IP of course is residential’’ so all emails chelby sent to her friend in San Diego (san.rr.com) were bounced.
Now my exim setup has a special rule for ``paranoid domains’'. Mail to be delivered to any of the domains in that list are relayed through my ISP's SMTP server rather than being delivered directly. I have a feeling in the future the paranoid_domains list will have more than just *.rr.com on it.
If everyone would just switch to OS X or Linux (or at least update their windows) this problem would go away.