I don't need to share folder, I just want the folders to synchronize so that when you logon to webmail the folder arrangement is the same as outlook.
if you are using pop3, you can't..
if a user create a folder in outlook SME will never see the new folder..
if you use imap, when user creates a folder, he will see it also in webmail.
I use only imap and I see the same structure (in my account) on my smartphone, on my laptop, on my pc and in webmail
HTH