Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ukma!gatech!utkcs2!cygnusx1!moore
From: moore@cygnusx1.cs.utk.edu (Keith Moore)
Newsgroups: comp.mail.sendmail
Subject: Re: Arpa source routes
Message-ID: <818@utkcs2.cs.utk.edu>
Date: 5 Apr 89 22:05:49 GMT
References: <8904041442.fofuz.andrew@stl.stc.co.uk>
Sender: news@utkcs2.cs.utk.edu
Reply-To: moore@cygnusx1.cs.utk.edu (Keith Moore)
Organization: CS Dept -- University of TN, Knoxville
Lines: 23

In article <8904041442.fofuz.andrew@stl.stc.co.uk> andrew@stl.stc.co.uk 
(Andrew Macpherson) writes:
>You are doubtless aware of the two different forms of From: lines
>
>    From: $?x$x <$g>$|$g$.
>and From: $g $?x($x)$.
>
>infamous for the mistake in the first in Eric Allman's documentation
>(he required the '<' '>', while 822 explicitly prohibits them unless
>the comment text $x is there.)
>
>This format is required for all mailboxes.

The upcoming host requirements RFC allows the comment text to be 
absent even if the '<' and '>' are present.  As a result, you can
always bracket addresses with '<' and '>' to make the commas in 
source-routed addresses unambiguous.

--
Keith Moore
UT Computer Science Dept.	Internet/CSnet: moore@utkcs2.cs.utk.edu
107 Ayres Hall, UT Campus	BITNET: moore@utkvx
Knoxville Tennessee 37996-1301	Telephone: +1 615 974 0822