On Tue, 6 Jan 1998, Rick Ballard wrote:
> I am using Exim 1.80.
>
> I am seeing large numbers of the following error in my rejectlog :
>
> 1998-01-03 01:10:58 rejected HELO: syntactically invalid argument(s): (no argume
> nt given)
>
> I have explicitly set "helo_verify=false", so I am unsure why these are being rejected.
RFC 821 August 1982
Simple Mail Transfer Protocol
3.5. OPENING AND CLOSING
At the time the transmission channel is opened there is an
exchange to ensure that the hosts are communicating with the hosts
they think they are.
The following two commands are used in transmission channel
opening and closing:
HELO <SP> <domain> <CRLF>
QUIT <CRLF>
In the HELO command the host sending the command identifies
itself; the command may be interpreted as saying "Hello, I am
<domain>".
Exim doesn't like it if HELO is not followed by a domain, as per the
RFC. This is nothing to do with whether it validates the domain or not.
--
Philip Hazel University Computing Service,
ph10@??? New Museums Site, Cambridge CB2 3QG,
P.Hazel@??? England. Phone: +44 1223 334714
--
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