Re: HELO/EHLO and applicability statement

Raymond S Brand wrote:
> 
>>  The hope that people will use FQDN's is contentious, of course.  To
> 
> 
> Most of the legitimate SMTP connections I see have had FQDNs in the EHLO
> command.
> 

Do you mean to imply that IP addresses will not be allowed in the HELO 
command? Is there a conflict with between saying this and RFC 821/2821, 
in particular section 4.3.1:

-----------snip--------------
    Sometimes a host is not known to the domain name system and
    communication (and, in particular, communication to report and repair
    the error) is blocked.  To bypass this barrier a special literal form
    of the address is allowed as an alternative to a domain name.  For
    IPv4 addresses, this form uses four small decimal integers separated
    by dots and enclosed by brackets such as [123.255.37.2], which
    indicates an (IPv4) Internet Address in sequence-of-octets form.  For
    IPv6 and other forms of addressing that might eventually be
    standardized, the form consists of a standardized "tag" that
    identifies the address syntax, a colon, and the address itself, in a
    format specified as part of the IPv6 standards [17].
-----------snip--------------