[ On Wednesday, February 4, 2004 at 23:12:02 (-0800), Fred Viles wrote: ]
> Subject: Re: [Exim] Require A records for host names in HELOs?
>
> Interesting, even RFC2821 contradicts itself on this point.
It could do nothing but -- it must defer to RFC 1123. :-)
> I find no mention of PTR
> records in RFC2821.
Why would you expect to? They're not pertinent to SMTP directly --
they're simply used in the DNS to validate hostnames. Hostnames are
used in SMTP (particularly in the greeting command and it's response).
You must learn to look at the _whole_ picture. No one rule in the RFCs
stands alone.
--
Greg A. Woods
+1 416 218-0098 VE3TCP RoboHack <woods@???>
Planix, Inc. <woods@???> Secrets of the Weird <woods@???>
