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25 Ιουν 2024 · Internet Message Access Protocol (IMAP) is an application layer protocol that operates as a contract for receiving emails from the mail server. It was designed by Mark Crispin in 1986 as a remote access mailbox protocol, the current version of IMAP is IMAP4.
The Internet Message Access Protocol is an application layer Internet protocol that allows an e-mail client to access email on a remote mail server. The current version is defined by RFC 9051 . An IMAP server typically listens on well-known port 143, while IMAP over SSL/TLS (IMAPS) uses 993.
3 Ιουλ 2021 · To retrieve a message from an IMAP4 server, an IMAP4 client first establishes a Transmission Control Protocol (TCP) session using TCP port 143. The client then identifies itself to the server and issues a series of IMAP4 commands: LIST: Retrieves a list of folders in the client’s mailbox. SELECT: Selects a particular folder to access its messages.
1. User Authentication: When a user opens their email client (e.g., Microsoft Outlook), the client initiates a connection request to the email server via IMAP. 2. Port Connection: Typically, this connection is established through specific ports, with port 143 for unencrypted and port 993 for encrypted SSL/TLS connections being common choices. 3.
The Internet Message Access Protocol Version 4rev2 (IMAP4rev2) allows a client to access and manipulate electronic mail messages on a server. IMAP4rev2 permits manipulation of mailboxes (remote message folders) in a way that is functionally equivalent to local folders.
IMAP4 permits manipulation of remote message folders, called "mailboxes", in a way that is functionally equivalent to local mailboxes. IMAP4 also provides the capability for an offline client to resynchronize with the server (see also ).
These are the general steps and processes involved in an IMAP operation: When a user signs into the email client -- e.g., Microsoft Outlook -- the client contacts the server using IMAP. The connection is made on a specific port. The headers of all emails are displayed by the email client.
