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From: Steinar Bang <sb@metis.no>
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Subject: Re: denying nnimap server causes nnimap-close-group to crash
Date: 26 May 2000 18:13:33 +0200
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>>>>> Steinar Bang <sb@metis.no>:

> Platform: Gnus v5.8.7, XEmacs 20.4, linux
> When I'm at home, none of the IMAP servers at work are available, so I 
> would like to deny them.

> However if I go to the server buffer, and press D on these servers,
> and then go back to *Group* and press 
> 	g
> I end up with the following stack trace:

> Signaling: (wrong-type-argument stringp nil)
>   set-buffer(nil)
>   (save-current-buffer (set-buffer nnimap-server-buffer) (when (and ... ...) (case nnimap-expunge-on-close ... ... ...) (not imap-current-mailbox)))
> )
>   (with-current-buffer nnimap-server-buffer (when (and ... ...) (case nnimap-expunge-on-close ... ... ...) (not imap-current-mailbox)))
> )
>   nnimap-close-group("INBOX" "somemachine.somecompany.no")
>   gnus-get-unread-articles(2)
>   gnus-group-get-new-news(2)
>   call-interactively(gnus-group-get-new-news)

Further datapoint: If an nnimap server ends up as denied because of a
timeout or a C-g while Gnus is trying to access it, the error above
doesn't occur.