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I see about 50 / hour just like this: "............did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA" This is across multiple mail servers and the messages originate from all over the network. If it is something to do with my network / sendmail configuration, I would like to know what it is also. - -- EKB My spelling sometimes fails to conform to published standards. On Tue, 20 Jan 2004 at 09:23 -0500, [EMAIL PROTECTED] at [EMAIL PROTECTED] said: > [EMAIL PROTECTED] wrote on 01/18/2004 02:59:33 > PM: > > > How common is it for MTA's to not send a: > > helo or etrn commnad? > > Not very common for MTA. This likely somtone/thing probing your network. > > > > 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? > > Nope. try telnetting to your server on port 25. and issuing a mail from > command. It should complain that it did not receive a HELO or EHLO > first. > > > What MTA server would be doing this? > > None. > > > > Can you reject on this? > > What's to reject? > _______________________________________________ > Visit http://www.mimedefang.org and http://www.canit.ca > MIMEDefang mailing list > [EMAIL PROTECTED] > http://lists.roaringpenguin.com/mailman/listinfo/mimedefang > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQFADUCAdY33sSC+/BERAnzYAJ9DFzrBlEvmpfdHeNIGMM3PCQTgUACfeji2 m65gm++5+/Hn8Nr2rHp+HHk= =H5I2 -----END PGP SIGNATURE----- _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
