Hi,
It still doesn't, only in pop mode.
However I think I have a work around:
#1 open the set up email page and fill:
email address:
user@fastmail.fm
yourpassword
yourname
click on next
you should get "unable to connect with the information provided" and a new screen
#2 here fill
password
user name: user@fastmail.fm
do not click next! instead:
copy this to the adressfield of your browser: https://netac5.vie.hosting.nokia.com/account/addEmailMoreInfoNoCorpSupport.action
load
note: if you do not fill the form the upcoming screen will be missing the password or not load at all
you should be in a sort of advanced settings screen
#3 here fill:
yourname
imap.proxy.fastmail.fm
port:143
click OK
note: if you use mail.messagingengine.fm you'll get pop only again
and voila! there are the subfolders
It worked for me (fastmail, firefox, e66), hope it'll work for you. Unfortunatetly it doesn't "push2" the subfolders. But at least they can be accessed. If somebody finds a more elegant solution I'd be happy if he'd post it here.