On Mon, Jun 28, 2010 at 17:34:38 +0800, Ed Greshko <Ed.Greshko@xxxxxxxxxxx> wrote: > > AFAIK, SPF records are queried by the receiving based on the domainname > in the "From" address. So, if a spammer is pretending to be sending > from user@xxxxxxxxxxx the receiving end will make a DNS request for the > TXT records of hotmail.com to determine its SPF records and how to treat > the email after the analysis. SPF refers to the envelope sender address. That's why it causes problems with forwarding. Normally the address in the from header matches the envelope sender address, but that isn't always the case (mailing lists being a big exception). -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
