Re: - Configuring and enabling Sender ID filtering in Exchange 2003 SP2

  • From: nromero@xxxxxxxxxx
  • To: exchangelist@xxxxxxxxxxxxx
  • Date: Tue, 1 Nov 2005 09:57:06 -0700

Is SPF widely used?  I tested a couple of spam messages against the SPF link from this article.  The spammer was sending from a
domain that doesn't have an SPF record so the message would have passed. 
Can spammers bypass this filter by simply using domains that do not have
SPF records?

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