On Thu, 16 Dec 2004, Marc Perkel wrote:
> Yes - but - Exim does allow the HELO to not be a DNS name at all
It allows an IP address in [] as per the RFC.
> and it allows that there might not be a HELO at all. So I think it's
> is at least inconsistent with other loose rules regarding HELO.
I can consistently claim that I am as inconsistent as anybody else. :-)
> Quite frankly - I'm not sure that the HELO has any useful
> functionality in the first place and I wonder why it even exists.
EHLO (as opposed to HELO) enables the client to discover what optional
SMTP facilities the server supports.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book: http://www.uit.co.uk/exim-book
