mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?)

Roy Badami roy at gnomon.org.uk
Tue Sep 13 23:18:22 UTC 2005



    william(at)elan> Could you elaborate on how firewall will
    william(at)elan> determine if the connection is from mail server
    william(at)elan> or from telnet on port 25?

Perhaps because most telnet clients will attempt telnet option
negotiation?  If so one could avoid this by using a client such as
netcat...

	-roy



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