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What is POP3?

Stands for "Post Office Protocol." POP3, sometimes referred to as just "POP," is a simple, standardized method of delivering e-mail messages. A POP3 mail server receives e-mails and filters them into the appropriate user folders. When a user connects to the mail server to retrieve his mail, the messages are downloaded from mail server to the user's hard disk. When you configure your e-mail client, such as Outlook (Windows) or Mail (Mac OS X), you will need to enter the type of ... Read more

What is SMTP?

Stands for "Simple Mail Transfer Protocol." This is the protocol used for sending e-mail over the Internet. Your e-mail client (such as Outlook, Eudora, or Mac OS X Mail) uses SMTP to send a message to the mail server, and the mail server uses SMTP to relay that message to the correct receiving mail server. Basically, SMTP is a set of commands that authenticate and direct the transfer of electronic mail. When configuring the settings for your e-mail program, you usually ... Read more

What is a Port?

In the computer world, the term "port" has three different meanings. It may refer to 1) a hardware port, 2) an Internet port number, or 3) the process of porting a software program from one platform to another. 1. Hardware Port A hardware port is a physical connection on a computer or another electronic device. Common ports on modern desktop computers include USB, Thunderbolt, Ethernet, and DisplayPort. Previous generations of computers used different ports, such a serial ports, parallel ports, and VGA ports. Mobile devices often have only one port. For example, an iPhone or iPad may have a single Lightning connector. ... Read more
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