--On Friday, March 15, 2002 18:32:07 +0100 "E. Scichilone"
Hello list, how can I turn off the "feature", that anybody can telnet to my smtp-port? Are there any special progs necessary or is the PrivacyOption goaway or similar enough? How do you handle that? thanx
A telnet client is different to an smtp client in the interpretation of a single character, IAC or 0xff which is an escape for telnet meta data. In theory you could use that fact to detect a telnet client but I have never heard of anyone doing it and I don't think that it would help you much. Blocking telnet does not raise the security of you mail in any way. Sendmail can block mail based on a set of rules, or you can perhaps use TLS to verify the sender. /Michael -- This space intentionally left non-blank.