That's not necessarily true. They could be using a antivirus product like Symantec - that rejects a message after receiving it (a no-no as far as also sending a notification back to the sender).
That would have nothing to do whether or not they use SPF. On Wed, Apr 23, 2008 at 1:27 PM, Kennedy, Jim <[EMAIL PROTECTED]> wrote: > > > > You certainly should publish an SPF, it can help and causes no harm as you > point out. But I would respectfully suggest that someone sending that much > backscatter is already so clueless that they probably don't check SPF > either. > > > > Firewall them. > > > > > > > > > From: Don Andrews [mailto:[EMAIL PROTECTED] > Sent: Wednesday, April 23, 2008 1:23 PM > > To: MS-Exchange Admin Issues > Subject: RE: NDR's generated via spoofed from address > > To: MS-Exchange Admin Issues > Subject: RE: NDR's generated via spoofed from address > > > > > > > Publishing an SPF record may help some depending on the domain(s) the NDR's > are coming from. > > > ________________________________ > > > From: Clayton Doige [mailto:[EMAIL PROTECTED] > Sent: Wednesday, April 23, 2008 5:38 AM > To: MS-Exchange Admin Issues > Subject: NDR's generated via spoofed from address > > > > Hi all, have a user who is getting nailed with NDR's for email she is not > sending. We have verified that there are no matching emails coming out of > the E2k3 SP2 server which means that someone 'out there' is spoofing the > from address and NDR's are going to that address. > > > > What's the best bet to combat this? Said user is getting bored of deleting > the NDR's > > > > Thanks in advance for any advice J > > > > Clayton Doige > > Project Management Consultant > > Green IT Solutions Ltd > > [EMAIL PROTECTED] > > 01277844943 > > 07949255062 > > www.greenit.co.uk > > > > **************************************************************************** > Internet communications are not secure and Green IT Solutions Ltd does not > > accept legal responsibility for the contents of this message. Any views or > > opinions presented within are solely those of the author and do not > > necessarily represent those of Green IT Solutions Ltd. Although Green > > IT Solutions Ltd operates anti-virus programmes, it does not accept > > responsibility for any damage whatsoever that is caused by viruses being > > passed. Telephone communications and replies to this email may be monitored > > by Green IT Solutions Ltd for operational or training purposes. > **************************************************************************** > > > > > > > > > > > > > -- ME2 ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
