On 12 January 2016 at 16:36, Patrick von der Hagen <[email protected]> wrote:
> The way I reed it: "the client MUST issue HELO or EHLO, but it SHOULD > send EHLO instead of HELO." > Nope, I disagree with the above. The RFC says: 1. A client SMTP SHOULD start an SMTP session by issuing the EHLO command. 2. Older client SMTP systems MAY, as discussed above, use HELO (as specified in RFC 821) instead of EHLO … 3. In any event, a client MUST issue HELO or EHLO before starting a mail transaction. As far as I can see there is nothing which says "the client MUST issue HELO or EHLO" apart from in the context of starting a mail transaction. (Otherwise you wouldn't be able to issue a QUIT without first sending a EHLO/HELO! :-) > There is no need for non-mail transactions instructions... > Cheers, Mike B-) -- Systems Administrator & Change Manager IT Services, University of York, Heslington, York YO10 5DD, UK Tel: +44-(0)1904-323811 Web: www.york.ac.uk/it-services Disclaimer: www.york.ac.uk/docs/disclaimer/email.htm -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
