I've seen this caused by a perl script using Net::SMTP. It issues a HELO line that sendmail didn't like so the connection was closed. That entry showed up in my maillog.
The weird thing is I have another 4 boxes using the same module and they don't have this issue. I worked around it in this situation by using this "define(`confALLOW_BOGUS_HELO', `True')" in my sendmail config. However, I'm sure there is a better solution. I just don't know what it is. ----- Original Message ----- From: "Lucas Albers" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, January 19, 2004 5:59 AM Subject: [Mimedefang] mail server not issueing helo ro similar > How common is it for MTA's to not send a: > helo or etrn commnad? > > I see this in my logs: > did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA > > Assuming you are using sendmail, will it even accept the mail if a valid > helo or ehlo command is not received? > > What MTA server would be doing this? > > Can you reject on this? > > --Luke > > _______________________________________________ > Visit http://www.mimedefang.org and http://www.canit.ca > MIMEDefang mailing list > [EMAIL PROTECTED] > http://lists.roaringpenguin.com/mailman/listinfo/mimedefang > -- Scanned and found clear for viruses by entirescan http://www.entirescan.com/ _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang

