Re: SBS firewall blocking port 25 SMTP traffic?
- From: "Gregg Hill" <bogus@xxxxxxxxxxx>
- Date: Wed, 22 Feb 2006 22:29:39 -0800
Steve,
You said, "I have change the SMTP port on the Exchange server to 1025 and
can telnet into it externally."
Do you mean that you had this set up when you first tried to get SMTP mail,
or did you change it to port 1025 after port 25 failed to work? If you
always had it on 1025, then follow Russ' suggestions. If you initially tried
it with Exchange on the standard SMTP port 25, then did you run the CEICW?
You also mention that you forward it to the server's internal NIC. Is this a
dual-NIC setup? If so, you should be forwarding to its WAN NIC.
Reset Exchange to port 25, re-run the CEICW, Telnet from the LAN into port
25. If that works, try it from the outside.
Gregg Hill
"Steve" <Steve@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:044F8FBF-0A80-432F-9B50-8A4AB48EACDB@xxxxxxxxxxxxxxxx
Any suggestions?:
I have recently upgraded a clients server to collect email via SMTP rather
than POP3 connector and have the following issue.
No incoming mail + unable to Telnet to external IP:25
The configuration consists of a Zoom router which passes all Traffic to a
Watchguard SOHO 6 firewall. The firewall logs show SMTP traffic 'hitting'
the
firewall. This is then forwarded on to the servers internal IP address but
it
never arrives in Exchange.
I have change the SMTP port on the Exchange server to 1025 and can telnet
into it externally.
The ISP is not blocking port 25 because traffic is hitting the firewall.
As a final check I have installed a third party SMTP mail software on the
server which listens for SMTP traffic on port 25. This IS being picked up
and
at present is forwarded on to the Exchange port 1025 where mail is being
received and handled by Exchange.
So I know that port 25 is open on the server & that it is receiving email
but not in Exchange, help!!
.
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