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What is IMAP?

青灯夜游
Release: 2019-03-12 11:52:21
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IMAP stands for Internet Message Access Protocol, which is a mail protocol used to access email on a remote web server from a local client. The following article will introduce you to IMAP, I hope it will be helpful to you.

What is IMAP?

#Internet Message Access Protocol (IMAP) is a standard protocol for accessing email on a remote server from a local client. IMAP is an application layer Internet protocol that uses underlying transport layer protocols to establish host-to-host communication services for applications.

The IMAP protocol works on two ports:

Port 143: This is the default IMAP non-encrypted port

Port 993: If you want to securely To connect using IMAP, this is the port you need to use

How does it work?

Think of IMAP as an intermediary between email clients and email servers. Always use an email server when sending and receiving email. However, with IMAP, they will remain on the server unless the user explicitly deletes them from them.

Using IMAP, users can access email from anywhere because all email remains on the server until the client explicitly deletes it from the server; whenever a user checks their inbox, the user's Email clients all contact the server to connect users with messages. When a user uses IMAP to read an email, it is not actually downloaded or stored on the user's computer; instead, the message is being read from the server. Therefore, you can check your emails from multiple different devices without missing anything.

The main advantages of IMAP

1. It allows users to access their email from anywhere through any number of different devices.

2. IMAP allows users to access, organize, read and sort emails without downloading them first. As a result, users can check their mail faster and have more control over which attachments are opened.

3. Use IMAP to delete emails independently, create and manage multiple mailboxes or folders.

4. IMAP will not move emails from the server to the user's computer. It can synchronize emails on the user's computer with emails on the server.

The above is the detailed content of What is IMAP?. For more information, please follow other related articles on the PHP Chinese website!

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