Re: [Asrg] 0. General - Administrative - for M. Wild

[Brad Knowles <brad.knowles@skynet.be>]

At 10:54 AM -0400 2003/08/28, Richard Rognlie wrote:

>  And according to RFC2821, putting an IP as the HELO *IS* valid.
>  it is supposed to be an FQDN or an IP (in those cases where a machine
>  has no name [e.g. a dynamic dialup IP])  However, I don't accept
>  mail from HELO ip.ad.re.ss unless it's a LOCAL IP.
	Since RFC2821 explicitly prohibits you from checking the domain 
literal claimed in EHLO/HELO and rejecting the message if the reverse 
DNS doesn't match that domain, then I submit that your tests are at 
least violating the spirit of RFC2821 in a similar manner.

	But this is something that needs to be put in an updated BCP.  We 
should probably also talk to the appropriate IETF group about an 
update/clarification of RFC2821 to be more explicit on these issues.

--
Brad Knowles, <brad.knowles@skynet.be>

"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
    -Benjamin Franklin, Historical Review of Pennsylvania.

GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E-(---) W+++(--) N+
!w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++)
tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)

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