IMAP4


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IMAP4

(Internet Message Access Protocol 4) A programming interface (API) from the IETF that enables a user's email program to access the mail server (RFC 3501 standard). Email clients such as Outlook, Mail, Eudora and Thunderbird are typically configured to retrieve mail either via IMAP4 or POP3, the other popular standard.

IMAP4 has more options than POP3. For example, it can download only the message headers, which have only to/from addresses and subject. An essential option in the early days of dial-up, the user then chooses which messages and attachments to download. IMAP also keeps the messages on the mail server in synchronization with the downloaded messages in the client. Users can then decide when and which messages to delete on the server.

IMAP Flexibility for Web Mail
Although mail services provide a Web browser interface for managing mail, users often prefer to get mail via their favorite email client, configured for IMAP4 or POP3. In addition, some users like to keep their email online indefinitely for future searching. In such cases, IMAP4 offers the flexibility of selectively retaining messages, whereas POP3 does not. See POP3, email interfaces, SMTP and messaging system.


Incoming Mail Options
Most Internet mail services offer all three options. IMAP4 provides the most flexibility. Users can store their messages locally and have it synchronized with the server. In addition, IMAP4 lets multiple users access the same mailbox simultaneously.
References in periodicals archive ?
Adherence to various message exchange standards: new UM solutions have to function with a wide variety of enterprise products; ratified industry standards such as VPIM (Voice Profile for Internet Mail) and IMAP4 (Internet Messaging Access Protocol version 4) enable interactions among distinct voice messaging systems and e-mail clients.
Corporation Founded in 1994, Notify Technology Corporation, (OTC: NTFY) is an innovative provider of wireless mobile middleware focusing on Novell GroupWise, Microsoft Exchange, and various IMAP4 collaboration suites, providing secure real-time synchronization of email and PIM (contacts, calendar, tasks) independent of device and network.
Notify Technology is the leading provider of mobile wireless enterprise solutions for Novell GroupWise and IMAP4 organizations providing services for Over-The-Air synchronization, access and management of email and PIM (contacts, calendar, tasks) independent of device and network.
The device connects users to their MSN Messenger service and to their MSN Hotmail as well as POP3 and IMAP4 email accounts, allowing them to easily utilise the full power of mobile IM and email.
Notify Technology is the leading provider of wireless mobile middleware focusing on Novell GroupWise and IMAP4 email systems providing services for Over-The-Air synchronization, access and management of email and PIM (contacts, calendar, tasks) independent of device and network.