IMAP4 and SMTP
IMAP and SMTP allow you to use the email client of your choice. With MySite's webmail offering you can access your email anywhere you have an internet connection. If you are on your personal computer you can use an email client such as Outlook, Thunderbird, Eudora, Mac Mail etc to connect to MySite's email servers. If you are on the run, you can still access your email through a web browser.
IMAP (Internet Message Access Protocol) is used to access email from a server. Unlike POP3, IMAP is designed to keep all email on the server. You view your email by requesting temporary copies that you then view in your email client. With IMAP you can create and manage folders, delete and copy messages from one folder or mailbox to another and other action.
SMTP (Simple Mail Transfer Protocol) is used to send and receive email. Commonly users (or their email client) will send email to their mail server through SMTP. The server will then forward the email to the proper destination through SMTP. The recipient will then usually download the email through POP3 or IMAP.