Re: [Exim] RFC ?

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Author: Jeremy C. Reed
Date:  
To: Pete Barnwell
CC: exim-users
Subject: Re: [Exim] RFC ?
On Wed, 31 Oct 2001, Pete Barnwell wrote:

> Can any knowledgeable person please tell me which RFC says you must use a
> FQDN in HELO? (And where I can find a copy).


2821

"Hello, I am <domain>"

4.1.1.1 Extended HELLO (EHLO) or HELLO (HELO)

These commands are used to identify the SMTP client to the SMTP
server. The argument field contains the fully-qualified domain name
of the SMTP client if one is available. In situations in which the
SMTP client system does not have a meaningful domain name (e.g., when
its address is dynamically allocated and no reverse mapping record is
available), the client SHOULD send an address literal (see section
4.1.3), optionally followed by information that will help to identify
the client system.

Use google, altavista or your favorite search engine.
http://www.faqs.org/rfcs/rfc2821.html
http://www.ietf.org/rfc/rfc2821.txt
http://www.cis.ohio-state.edu/cgi-bin/rfc/rfc2821.html

Jeremy C. Reed
echo '9,J8HD,fDGG8B@?:536FC5=8@I;C5?@H5B0D@5GBIELD54DL>@8L?:5GDEJ8LDG1' |\
sed ss,s50EBsg | tr 0-M 'p.wBt SgiIlxmLhan:o,erDsduv/cyP'