[Mimedefang] mail server not issueing helo ro similar

David Gwynne loki at animata.net
Sun Jan 18 18:35:20 EST 2004


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" <admin at cs.montana.edu>
To: <mimedefang at lists.roaringpenguin.com>
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
>
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