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Restricting Inbound SMTP to single Sender

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Restricting Inbound SMTP to single Sender - 22.Nov.2007 7:01:56 PM

dekkar

Posts: 49
Joined: 2.Nov.2001
From: sydney, australia
Status: offline

Hello.... our company just joined up to messagelabs, and it seems a lot of the spam we are getting is being routed straight to us, rather than through our MX records... (I think)..

Messagelabs advised us to restrict our inbound SMTP to their servers only, so all this 'direct' spam gets ignored.

I want to be able to do this from our ISA 2004 server, I guess it is in our SMTP Policy in the FROM tab... Changing this from Anywhere to just the Messagelabs servers....

Is this the correct way to go about this? also do I just add a new Network (being the messagelabs ipaddresses) and thats it??

Thanks in advanced!
Dekkar

Post #: 1

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RE: Restricting Inbound SMTP to single Sender - 22.Nov.2007 8:36:00 PM

AHIT

Posts: 1561
Joined: 22.Jul.2002
From: Sydney, Australia
Status: offline

basically you've hit the nail on the head.
Check out this recent thread about this same 'problem' - http://forums.isaserver.org/Blocked_IP_address_from_sending_e-mail/m_2002057350/tm.htm

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