Re: nnimap support for "NAMESPACE" (prefix "INBOX." on

[Ted Zlatanov <tzz@lifelogs.com>]

I also would like to find the namespace prefix and separator from the
IMAP server.  Right now I do this in order to have working splitting:

(setq
 nnimap-split-rule '(
		     ("lifelogs" ("INBOX" nnimap-split-fancy)) ; UW IMAP
		     ("sysblade0" ("INBOX" nnimap-courier-split-fancy))) ; Courier

 nnimap-courier-split-fancy '(|
; ... omitted ...
			      (: gnus-registry-split-fancy-with-parent)
			      (: spam-split 'spam-use-regex-headers)
; ... omitted ...
			      (: spam-split 'spam-use-blackholes)
			      ;; default mailbox
			      "INBOX.mail")

 nnimap-split-inbox "INBOX"
 nnimap-split-fancy '(|
; ... omitted ...
		      (: gnus-registry-split-fancy-with-parent)
		      (: spam-split 'spam-use-regex-headers)
; ... omitted ...
		      (: spam-split)
		      ;; default mailbox
		      "mail")
 )

(defun nnimap-courier-split-fancy ()
  (let ((nnimap-split-fancy nnimap-courier-split-fancy)
	(spam-split-group "INBOX.spam"))
    (nnimap-split-fancy)))

Note I set the spam-split-group also, because it's "spam" by default.

With the namespace prefix this would be simpler.  I would still have
separate split rules because the servers have different purposes, but
I wouldn't have to set the spam-split-group explicitly, and I
wouldn't have different mailbox names everywhere.

That being said, I think the Courier model of having a namespace
prefix for private vs. shared vs. public groups is very clean, and I
like it very much.

Ted