This is for INBOUND emails. Here's my last test session:
host01:/home/jd $telnet localhost 25
Trying...
Connected to localhost.
Escape character is '^]'.
220 host01.xxxxxx.com ESMTP Sendmail @(#)Sendmail version 8.13.3 - Revision 2.001 - 2005/02/12/8.13.3; Wed, 8 Jul 2009 15:09:29 -0400 (EDT)
EHLO test.com
250-host01xxxxxx.com Hello localhost [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-EXPN
250-VERB
250-8BITMIME
250-SIZE 4096000
250-DSN
250-ETRN
250-DELIVERBY
250 HELP
MAIL FROM:
jd@test.com
250 2.1.0
jd@test.com... Sender ok
RCPT TO:
jd@blatt.com
250 2.1.5
jd@blatt.com... Recipient ok
DATA
354 Enter mail, end with "." on a line by itself
this is a test message
.
.
at this point, nothing happens...the connection will eventually timeout and close the connection. I've tried it from three different hosts and two different terminal programs...no change in results. Using different FROM: and TO: addresses also have no effect.
Thanks for the help