Path: utzoo!utgpu!attcan!uunet!mcvax!kth!draken!chalmers!cs.chalmers.se!lindberg
From: lindberg@cs.chalmers.se (Gunnar Lindberg)
Newsgroups: comp.mail.sendmail,swnet.mail
Subject: Re: mail to .at domain (fix)
Message-ID: <2899@fnatte.cs.chalmers.se>
Date: 17 Mar 89 15:04:23 GMT
References: <2898@fnatte.cs.chalmers.se>
Sender: news@cs.chalmers.se
Organization: Chalmers University of Technology, Sweden
Lines: 15

In article <2898@fnatte.cs.chalmers.se> I wrote about problems with
"sendmail" parsing "foo.at.bar" (RFC822 says "at" -> "@" :-).

The problem comes from rule S3:

    R$+ at $+		$1@$2		"at" -> "@" for RFC 822

Now, I think I've found a fix:

  + R$*at.$*		$1<@>.$2	save at.foo.bar
  + R$*.at$*		$1.<@>$2	save foo.at.bar
    R$+ at $+		$1@$2		"at" -> "@" for RFC 822
  + R$*<@>$*		$1at$2		restore at.foo.bar/foo.at.bar

	Gunnar Lindberg