Windows 8 and Windows RT include a built-in email app named Mail (also referred to as Windows 8 Mail or the Windows 8 Mail app). The Windows 8 Mail app includes support for IMAP and Exchange A...
Updated Jul 01, 2019
Version 2.0
Blog Post
@Plain English please: By default, IMAP listens on well-known
port 143 If your mail server has IMAP over SSL (IMAPS) enabled, it typically listens on the well-known
port 993. (Both ports TCP, but you don't need to specify that when configuring Mail). You must configure Windows 8 Mail with either IMAP or IMAP over SSL settings to access mail from your IMAP mailbox server.
This article is meant for IT pros to support Windows 8 Mail in organizations. You can find more details about IMAP4 in the IMAP RFC linked in the article. There are plenty of other great
http://www.bing.com/search?q=imap4, including
http://en.wikipedia.org/wiki/Internet_Message_Access_Protocol
Wikipedia.