Quote:
Originally Posted by ETDC
Sorry, but I think that's rubbish - the user will be inviting a friend by entering an email address that they've probably already written to. How could their own email be marked as spam over one from an unknown, new source?...
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Because most spam detectors these days look at e-mail message sources, which show originating IPs and machinenames; e-mail sent from the vBulletin system, whether from a user who knows another user's e-mail address, or from the system itself, will all contain the same originating trace markers.
If you know how to properly configure your server as fullfactor suggested (reverse DNS, SPF record modifications), you can avoid this problem.