Troubles getting SMTP thru ISA
- From: "Alin Selicean" <alin_selicean@xxxxxxxxx>
- To: isalist@xxxxxxxxxxxxx
- Date: Sun, 28 Oct 2001 08:04:57 -0700
Hi, Folks !
I have an Exchange 5.5 SP4 behind an ISA Server and I want to filter out
all the packets that passes through ISA Server. Therefore, I activated IP
Packet Filtering and created filters for SMTP packets on port 25. As for
the DNS traffic, I am relying on the default created DNS filter, which
seems to work fine.
But somewhere I missed something. I am not able to send and receive
anymore email messages after I activated packet filtering. If I'm
deactivating completely the IP Pacjet Filtering option, mail is arriving
and can be sent out with no problems.
Can anyone help me out with this ? I don't have much experience in
filtering out packets and I don't know exactly which type of traffic,
excluding DNS and SMTP needs to be allowed to pass in order to have a
functional email system.
Thank you in advance.
Regards,
Alin
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