Internet Direct (Indy) Version 9.0.1 Beta
TIdIMAP4.Username
Identifies the user name for IMAP4 server authentication.

property Username;
Description
Username is a String property that identifies the user (or account) to be used for connection and authentication to the IMAP4 server. Username and Password are used in the Connect method to perform a clear-text login to the IMAP4 server.