POP3

POP3 means Post Office Protocol (version 3), which consists of mailboxes for e-mail systems so users can collect mail from a central location where mail is stored. POP3 accounts allow users mailbox on the server, the domain name. This means that if you own the domain "yourdomain.com" to send and receive e-mails yourname@yourdomain.com. Post Office Protocol version 3 offers a simple and standard for access to user mailboxes and download messages to their computers.

Most e-mail applications, also known as e-mail clients using POP protocol, although some may be using the new IMAP (Internet Message Access Protocol). To create a POP3 email accounts for your domain, your domain must be hosted on a server that has the name server.

Because POP3 allows the client computer collect mail via POP3 server (temporary) TCP / IP or other connection, except for sending e-mails, which is seen to be done via SMTP or other method. POP is suitable for devices such as phones or home computers without permanent connection to the network, requiring a 'post' (POP server) to hold their mail until they can get.

There are two versions of POP. The first, called POP2, became a standard in the middle-80s, and requires SMTP to send messages. Newer versions can use POP3, SMTP, with or without.

The main features of POP and IMAP

Although protocols are not supported directly and significantly different, there are certain common characteristics. Both:

How to handle e-mail access only. Sending mail via SMTP to handle.
Both permanent markers message to disconnect aid use.
They are freely available implementation (including source) available.
Relying on email delivery, usually shared, "always" mail server.
Allows access to new features of different types of client platforms.
Available for the implementation of client PC, Mac and Unix.
Available for commercial use.
provide access to new mail messages from anywhere in the network.
I fully support the connection (download and delete) access model.
Both protocols are open, which is defined in RFC.
Both are native Internet protocols, there is no need to post.