telnet port 25 not available externally (Full Version)

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EivindB -> telnet port 25 not available externally (30.Oct.2007 2:46:01 AM)

Hi,

we have a mail server that I can't reach by using telnet to port 25 from external locations. Mail is recieved and I can telnet from internal clients. Also, no hits are registered in the ISA server log when trying to telnet from outside.
If I try to telnet using port 110, then that is registered in the log.

Any ideas?

-Eivind Brenningen





tshinder -> RE: telnet port 25 not available externally (5.Nov.2007 8:08:35 PM)

Something between the ISA Firewall and the telnet client must be blocking the connection.

HTH,
Tom




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