>From: "Loren Wilton" <[EMAIL PROTECTED]>
>Subject: Is this Received header correctly formatted?
>Date: Tue, 15 Mar 2005 14:36:36 -0800
>...
>
>Received: from ar39.lsanca2-4.16.241.28.lsanca2.elnk.dsl.genuity.net
>([4.16.241.28] helo=watson1)
> by pop-a065d23.pas.sa.earthlink.net with smtp (Exim 3.33 #1)
> id 1DBKRe-0000Kp-00; Tue, 15 Mar 2005 14:23:22 -0800
>
>1) Is "stmp" in lower case valid, or should it have been STMP?
>2) Is it valid to have the (Exim etc) stuff between 'stmp' and 'id'?
>3) Anything else that may be off the mark?
>
>Thanks,
> Loren
>
Simply, yes. All identifiers used in any smtp transaction (commands
and account/host/domain identifiers) are supposed to be case insensitive.
Also there is great inconsistency between different MTAs, some convert to
all lower case (like your example) - Old Novell software converted to all
upper case (about 15-20 years ago). And finally the "with" is sometimes
also either a "by" or "via" (and probably other string values which I haven't
noticed). BTW. DNS is case insensitive by almost the exact same description
of the syntax (and different versions of Bind/named have acted differently
over time, I like that 9.x preserves whatever is in the zone file).
Paul Shupak
[EMAIL PROTECTED]
