Re: [ietf-smtp] Fwd: [dispatch] Forced SMTP redirects

John C Klensin <john-ietf@jck.com> Fri, 10 July 2020 05:24 UTC

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Date: Fri, 10 Jul 2020 01:23:52 -0400
From: John C Klensin <john-ietf@jck.com>
To: John Levine <johnl@taugh.com>, ietf-smtp@ietf.org
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Subject: Re: [ietf-smtp] Fwd: [dispatch] Forced SMTP redirects
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And then, of course,  there were the bright ideas about
universal/ global email directories.  One hesitates to describe
where those went  :-(

   john

--On Friday, July 10, 2020 00:30 -0400 John Levine
<johnl@taugh.com> wrote:

> In article
> <CAKFo7w=MJBt0FdnCcOZCXZWdkd6Jinv4TqwdpefdoaCncbZH3Q@mail.gmai
> l.com> you write:
>> PS: There have been some attempts at setting up
>> change-of-address services where you can register old and new
>> addresses, so mail servers could query them after getting a
>> 550, and they never went anywhere either.
>> 
>> See US Patents 6,654,789, 6,892,222, and 7,080,122.
> 
> By the way, 6,654,789 expires a week from Monday and 6,892,222
> expired last year so if you find any good ideas in them, you
> can use them.
> 
> 7,080,122 doesn't expire until 2023.
> 
> R's,
> John
> 
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