Is there an iCloud EMAIL specification ...anywhere?? This seems very strange to me. I have searched the Apple knowledge base for answers to some basic questions about what can/cannot be done with iCloud Email (@icloud.com/me.com/mac.com email addresses), but there is next to nothing available. I am talking about the SERVER SPECIFICATION here, not what any individual mail client can/can't handle. My specific questions are (when I say "folders", Apple tend to call them "mailboxes" often): 1) What is the maximum amount of folders? 2) What is the maximum amount of characters in folder names? 3) Apart from forward-slash ("/") are there any other characters that cannot be used in folder names? (are they 'unicode' chars perhaps, or something?) 4) What is the maximum depth of nested folders? I want to move all my email archives to iCloud IMAP (many folders)** – so they can be accessed from any of my devices and/or any computer via webmail, when wanted, instead of separate folders per email account spread across different email providers' servers. (** I can just drag them into my iCloud account using Mail.app, and let them sync.) Thanks in advance if you can find Apple's official word on this stuff (as an idea, it might even only be in the Dev centre Help section somewhere...perhaps?). It just seems ludicrous that other mass email providers give such info on their email specification, but Apple keep such basic stuff seemingly "hidden" away from users all the time, making decisions on possible usage thus being impossible. ...oh and the so-called Applecare "dudes" (that are too busy trying to sound so cool they can't be bothered to actually help you in any way!) are completely clueless (mine couldn't even type English properly and lied to me continually about things I knew were utter BS "you gotta name dem folders what's logical innit"...erm-right, okay, gee thanks!); got absolutely nowhere with them! Yours annoyed.