POP3 / Post Office Protocol Version 3 for Not Yet Techies

"Computer Careers: Using This Protocol for Sending Email Through the Internet"

by Richard Stooker, President Info Ring Press and author of Secrets of Changing to a Computer Career

POP3 / Post Office Protocol Version 3 is the oldest email receiving protocol. Your Internet Service Provider likely uses this to hold the email it receives which is addressed to your email address on their server. Your email client, such as Outlook or Eudora, accesses the stored emails and downloads them so you can read them. POP3 / Post Office Protocol Version 3 can be configured to leave your email still on the server after the download or to erase them as you download. Normally you should erase them because if you don't, your email program will have to download them again before it gets to all the new emails you received.

POP3 / Post Office Protocol Version 3 is therefore a store and forward server. Your ISP stores your emails until you come for them, then it forwards them to you. It is an email receiving protocol. You use SMTP / Simple Mail Transfer Protocol for sending email.

The alternative to POP3 / Post Office Protocol Version 3 is the newer IMAP4 / Internet Message Access Protocol Version 4, which allows your email program to view your emails directly on the server

I don't know how this is normally handled, but I can view all my email through a web browser. It just looks like a normal web page, except all my waiting email messages are sitting there waiting for me to click on them to learn how I can enlarge my penis, file for bankruptcy etc. I can choose to delete them or leave them there. This is very convenient for when I am not at my home personal computer. I can read my email during lunch hour at work or while traveling. Also, I'm safer from viruses. So I prefer that to POP3.

These are the POP3 / Post Office Protocol Version 3 basics.

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