IMAP is a protocol that provides access to and manipulation of electronic mail messages that are stored on a server. IMAP includes operations for creating, deleting, and renaming mailboxes, checking for new messages; permanently removing messages; setting and clearing flags; and searching and filtering message attributes and texts. Support for the GroupWise implementation of IMAP is based on RFC 2060, version 4rev1 and RFC 3501.
See the GroupWise IMAP SDK.