John Schmitt:
> I want to thank you and Viktor for replying.
> 
> On Thu, Apr 08, 2010 at 07:18:38PM -0400, Wietse Venema wrote:
> > John Schmitt:
> [...]
> > > Transcript of session follows.
> > > 
> > >  Out: 220 mymachine.mydomain.net ESMTP Postfix
> > >  In:  HELO mymachine
> > >  Out: 250 mymachine.mydomain.net
> > >  In:  MAIL FROM:<>
> > >  Out: 250 2.1.0 Ok
> > >  In:  RCPT TO:<"???B?\" <olpcxcqkkqc...@aol.com>>
> > >  Out: 501 5.1.3 Bad recipient address syntax

Some software author assumes that it can take an address form that
is valid in message headers:

        To: "full name" <u...@example.com>

and then use that same form in RCPT TO commands.  

The correct RCPT TO command syntax is:

        RCPT TO:<u...@example.com>

as defined in RFC documents 20 years ago.

Yes, the software's quoting algorithm is busted, too.

        Wietse

Reply via email to