trying learn how to email a person at a web site
What is pop3 mail and what is SMTP and how do you email someone?
pop3 (post office protocol 3) and smtp (simple mail transfer protocol) are two types of e-mail protocol that some ISP's use. (mine does, but its a local provider, and im not sure of the preferences of the rest of the country.) To e-mail someone, you need an e-mail client installed on your computer, the most popular on windows being Outlook or Outlook Express. You'd need to set up your account in that program, and to do that you need your e-mail address, the name the pop3 server (usually pop3.mail.yourisphere.com) and the smtp server (usually smtp.mail.yourisphere.com) and you'd also have to know your password that either the isp gives you, or that you set up with the isp.
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All ISPs use SMTP for transferring mail between each other, or from their customers to them. So, when you sent email, your MUA (mail user agent, whatever program you use on your desktop to satisfy your desktop needs) actually uses SMTP to send the email, not to your recipients computer but to your ISP's server.
ReplyDeleteYour ISP's mail server then has the responsability to send your email by SMTP to your recipient's mail server.
Unfortunately, SMTP becomes of no use unless you have your terminal on, so ISP deviced a different means (protocol) to do the final delivery to your mail's recipient. Two, as a matter of fact.
The most inferior of them is POP-3. which is also the most common. Why? Because only now has the technology become cheap enough to give the kind of Internet access IMAP requires to everybody. But, if you have above half a megabyte per second Internet access, IMAP (the 2nd protocol) is for you. Its key feature is that it keeps all mail in your ISP's computer instead of your own (but can keep working copies). This means that if your computer passes away, your email is exactly how you left it.
It does introduce a single point of failure, but a well designed and resourceful ISP has ways around that. Plus, it allows you to keep your own copies of everything.
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