Re: Cancel locks?

[Per Abrahamsen <abraham@dina.kvl.dk>]

Simon Josefsson <jas@extundo.com> writes:

> Per Abrahamsen <abraham@dina.kvl.dk> writes:
>
>> At one point, there was some talk about making Gnus use cancel locks
>> per default.  Did anything came from that?
>
> There is contrib/canlock.el.  Didn't the canlock draft expire?

I believe so, but it should nonetheless be useful for Gnus even if
nobody else supports them[1], and it might encourage others to support it
if something visible (like Gnus) out here actually make active use of
them.

They have been discussed on USEFOR recently, with no real resolution.

Footnotes: 
[1]  I remember the suggestion was that to use cancel locks to
determine whether the user would be allowed to cancel a message, thus
solving the problem with people posting from different mail addresses
(gnus-posting-styles) that made it necessary to generate a Sender
header.