Captive mailbox in Cyrus IMAP?

[Nik Conwell]

Thanks to all for the suggestions.  They were very good so I ignored  
them.  :)

I've patched imapd.c (cmd_login and cmd_authenticate) so that the  
presence and contents of {config_dir}/captive/{username} indicate the  
actual user that should be logged in (providing it begins with  
disabled).  So for example if /var/lib/imap/captive/smith contains  
"disabled-archiving", then when smith logs in, it will really be  
taken as disabled-archiving is logging in.   disabled-archiving has  
previously been primed with a message and has an ACL of lr to prevent  
updates.

I've tried swapping things back and forth with Apple Mail and  
Mulberry and things seem to work OK.  I don't know how this will work  
with a murder.

If anybody wants the patch (pretty small) I can send it somewhere  
appropriate.

Thanks.
-nik