Mail box types

•	POP only: Mail is downloaded to the user's computer.
•	IMAP only: Mail (both new and read messages) is stored on the mail server.
•	Both POP and IMAP: The user can choose whether to download or leave mail on the server.

Internet Message Access Protocol (IMAP)

AppleShare IP includes full support for IMAP version 4, allowing users to access their mail from anywhere on the Internet. Users can send and read mail with a number of industry-standard Internet e-mail programs, including Netscape Communicator, Microsoft Outlook Express, CTM PowerMail, Mulberry, Simeon, Siren, and more.

Post Office Protocol (POP)

POP is a protocol that is used to receive, but not send, mail. With POP, new mail is downloaded to the user's computer when he or she connects to the mail server. Once the mail has been downloaded, the user can disconnect from the mail server and read, organize, reply to, or compose new mail.

AppleShare IP includes full support for POP, allowing users to access their mail from anywhere on the Internet. Users can send and read mail with a number of industry-standard Internet e-mail programs, including Netscape Communicator, Microsoft Outlook Express, CTM PowerMail, Mulberry, Simeon, Siren, and more.

Simple Mail Transfer Protocol (SMTP)

SMTP is a protocol that can be used to send and receive mail. However, it is limited in its ability to queue incoming mail, so it is usually used with either POP or IMAP. SMTP sends mail, and POP or IMAP is used to receive mail.