using nnimap-split-fancy to split mail on server?

[Stephen Leake <stephen_leake@stephe-leake.org>]

I've been using Gnus with a POP backend forever, but I've recently
decided it would be nice to occasionally reference an email on my
smartphone.

So I'm switching to imap. I have several groups set up, and was hoping
that Gnus would automagically create the same groups on the sever as
separate IMAP mailboxes. But that doesn't seem to work.

The Gnus manual does not specifically address this, as far as I can see.
Browsing thru the ding archive on gmane I find some articles that seem
to imply it should work. Browsing thru nnimap.el I find
nnimap-request-move-article, so the infrastructure for this seems to be
there.

Here's my setup:

(setq mail-sources
      '((imap :server "mail.stephe-leake.org"
	      :user "stephen_leake@stephe-leake.org"
	      :port 143
	      :stream 'network
	      :fetchflag "\\Seen"
	      )
        ))

(setq nnimap-split-fancy
      '(|
	;; spam
	("subject" "SPAMSPAM" "spam")
	("from" "strat laios <stratlaios@verizon.net>" "spam")

        ;; These are before 'home' rules because people reply "to:" me,
        ;; "cc:" group
        ("to\\|cc" "bbdb-info" "bbdb-info")
        ("to\\|cc" "debian-ada" "debian-ada")
        ("to\\|cc" "debian" "spam")

...
))

This splits mail as expected in Gnus on my laptop. But when I access the
same server account via the GMail app on my smartphone, it does not show
the mailboxes/folders (it shows only the default 4 folders: Drafts,
Junk, Sent, Trash). I can search to find the mail I'm looking for, but
the folders would be very nice.

Is there anything else I need to do?

-- 
-- Stephe