Re: LSUB failure

[Alain Magloire]

> 
> On Tue, Apr 02, 2002 at 05:29:53PM +0300, Sergey Poznyakoff wrote:
> 
> > > What does the WU-imapd returns?  I can not check unfortunately.
> > > Probably many clients expect the "OK LSUB completed" response.
> > > And "NO .." means some fatal error
> 
> > I have just checked Cyrus imapd-2.0.5. It always returns OK response
> > on LSUB.
> 
>    Result:     OK - lsub completed
>                NO - lsub failure: can't list that reference or name
> 
> I'm just trying to figure out from the RFC what the Right Answer is.
> If we say that "can't list" is different than "empty set", then I
> think OK should be returned.
> 
> But if I need to harrass the Evolution folks to get them to accept a
> 'no' there gracefully, I can do that.

I think non existence of the file ".mailboxlist" should be
the same has an empty .mailboxlist i.e. "OK".

The "NO" should probably be for errors for example trying to
list mailbox or a news group that is not part of the hierarchy.
A002 LSUB "#news." "news.that.no.exist.*"

".mailboxlist" is the underlying mechanism, the server can be
lazy about it and may as well delete it if empty.  Same thing
for users who want to clear the subscribtions by doing
rm ~/.mailboxlist.