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From: Per Abrahamsen <abraham@dina.kvl.dk>
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Subject: Cancel-Locks (was: Re: Sender again again (was: Re: `user-mail-address' for message-ids))
Date: 26 Feb 2001 17:45:03 +0100
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How should the UI be?

I think it would be most useful as a mandatory feature, i.e. Gnus will
always add a cancel lock, and the cancel code will always check the
lock for permission.