2025年1月30日 · POP3, or Post Office Protocol Version 3, is an email protocol that allows users to retrieve and manage emails from a mail server, primarily used when a continuous internet connection is unavailable, and it supports offline access but lacks real-time synchronization.

In computing, the Post Office Protocol (POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server. [1] Today, POP version 3 ( POP3 ) is the most commonly used version.

The main protocols are SMTP for sending emails, and POP3 and IMAP for receiving emails. SMTP handles email transmission between servers, while POP3 downloads emails to a device and IMAP synchronizes emails across multiple devices.

The Post Office Protocol - Version 3 (POP3) is intended to permit a workstation to dynamically access a maildrop on a server host in a useful fashion. Usually, this means that the POP3 protocol is used to allow a workstation to retrieve mail that the server is holding for it.

2024年9月17日 · POP is the first email protocol, and POP3 is its newer version with better features. Both let you download emails to your device, but POP3 is more commonly used today. However, neither POP nor POP3 can sync emails across multiple devices, making them less flexible than IMAP.

2023年9月14日 · Post Office Protocol version 3, colloquially known as POP3, is an application-layer protocol used in the world of email communication. At its core, POP3 enables email clients—think Microsoft Outlook, Apple Mail, or Thunderbird—to fetch messages from a remote SMTP email server to your local device.

2024年1月26日 · POP3, or Post Office Protocol version 3, is an Internet standard protocol that retrieves email messages from a server over a TCP/IP connection. It’s the third version of the Post Office Protocol 3, which is defined in RFC 1939.

2023年1月9日 · Post Office Protocol version 3 (POP3) is a standard protocol used by email clients to retrieve email messages from a mail server. It is a simple, text-based protocol that allows a client to connect to a server, retrieve email messages, and mark them as read or unread.

2024年12月26日 · The Post Office Protocol version 3, or POP3, is a protocol used for retrieving email messages from a mail server. Originally developed in the 1980s, POP3 has become one of the most widely used protocols for accessing email messages on desktop and mobile devices.

2024年4月12日 · Learn how email services use the POP3 protocol to transfer messages from the mail server to the client.