Re: MSExchange.org - Configuring and enabling Sender ID filtering in Exchange 2003 SP2
- From: "Mark Fugatt" <markfu@xxxxxxxxxxxxx>
- To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
- Date: Tue, 1 Nov 2005 17:00:31 -0000
If a spammer uses a domain that does not have an SPF record then it
would depend on how you have configured Sender ID filtering on your end,
if you configure to reject messages that do not come from a
domain/server with an SPF record defined then message would not be
through.
Mark Fugatt
Dedicated Supportability Engineer (Exchange)
Microsoft Services Organisation
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-----Original Message-----
From: nromero@xxxxxxxxxx [mailto:nromero@xxxxxxxxxx]
Sent: 01 November 2005 16:57
To: [ExchangeList]
Subject: [exchangelist] Re: MSExchange.org - Configuring and enabling
Sender ID filtering in Exchange 2003 SP2
http://www.MSExchange.org/
Is SPF widely used? I tested a couple of spam messages against the
dnsstuff.com 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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