Internet Message Access Protocol

In computing, the Internet Message Access Protocol (IMAP) is an Internet standard protocol used by e-mail clients to retrieve e-mail messages from a mail server over a TCP/IP connection. IMAP is defined by RFC 3501.

IMAP was designed with the goal of permitting complete management of an email box by multiple email clients, Therefore, clients generally leave messages on the server until the user explicitly deletes them. An IMAP server typically listens on port number 143. IMAP over SSL (IMAPS) is assigned the port number 993.

Virtually all modern e-mail clients and servers support IMAP. IMAP and the earlier POP3 (Post Office Protocol) are the two most prevalent standard protocols for email retrieval, with many webmail service providers such as Gmail, Outlook.com and Yahoo! Mail also providing support for either IMAP or POP3.

E-mail protocols

The Internet Message Access Protocol is an Application Layer Internet protocol that allows an e-mail client to access e-mail on a remote mail server. The current version, IMAP version 4 revision 1 (IMAP4rev1), is defined by RFC 3501. An IMAP server typically listens on well-known port 143. IMAP over SSL (IMAPS) is assigned well-known port number 993.

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Latest News for: imap

Testing NASA’s IMAP (Interstellar Mapping and Acceleration Probe)

NASA 15 Apr 2025
NASA’s IMAP (Interstellar Mapping and Acceleration Probe) is loaded into the X-ray and Cryogenic Facility (XRCF) thermal vacuum chamber at NASA’s Marshall NASA home page.

NASA's IMAP arrives at NASA Marshall for testing in XRCF

Phys Dot Org 14 Apr 2025
The IMAP mission is a modern-day celestial cartographer that will map the solar system by studying the heliosphere, a giant bubble created by the sun's solar wind that surrounds our solar system and protects it from harmful interstellar radiation.

From Extreme Heat to Orbit: StratEdge Displays RF and High-Power Solutions at iMAPS HiTEC and CMSE

Business Wire 11 Apr 2025
SANTEE, Calif.--(BUSINESS WIRE)-- #5G--StratEdge unveils high-temp RF & power packaging at iMAPS HiTEC & CMSE. Discover reliability under extreme conditions! ... .

NASA’s IMAP Arrives at NASA Marshall For Testing in XRCF  

NASA 11 Apr 2025
NASA’s IMAP mission arrives at NASA Marshall Space Flight Center. Teams will use Marshall's XRCF thermal vacuum chamber where the spacecraft will undergo testing such as dramatic temperature changes to simulate the harsh environment of space.

[TOOL] IMAPly � Simplify Your IMAP Email Migrations (Free Beta)

Web Hosting Talk 09 Apr 2025
I�m excited to introduce you to IMAPly, a new platform I built to help hosting providers and sysadmins handle IMAP email migrations at scale � with better visibility, more control, and less hassle.

2025 International Conference on Electronics Packaging Joined with iMAPS All Asia Conference (ICEP-IAAC 2025) (Ulvac Inc)

Public Technologies 07 Apr 2025
) 2025.04.07 News. 2025 International Conference on Electronics Packaging Joined with iMAPS All Asia Conference (ICEP-IAAC 2025). ICEP-IAAC 2025 will be held from April 15 to 19, 2025, in Nagano, Japan ... PRESENTATION DATE April 17, 2025 ... SESSION TA2.

Prospectus BPWO 58 (Imaps ETI AG)

Public Technologies 05 Apr 2025
Issuing institution iMAPS ETI AG ... Imaps ETI AG published this content on April 04, 2025, and is solely responsible for the information contained ...
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