Whats the difference between SMTP and POP?
SMTP, short for Simple Mail Transfer Protocol, is an Internet protocol for sending email messages between servers. Most email systems that send mail over the Internet use SMTP to send messages from one server to another. These messages can then be retrieved with an email client using either POP or IMAP. In addition, SMTP is generally used to send messages from a mail client to a mail server. This is why you need to specify both the POP or IMAP server and the SMTP server when you configure your email application. POP is an acronym for Post Office Protocol, and is used to retrieve messages from a mail server. Most email applications (sometimes called an email client or an email reader program) use the POP protocol, although some can also use the newer IMAP (Internet Message Access Protocol). There are two versions of POP. The first, POP2, became a standard in the mid-80’s and requires SMTP to send messages. The newer version, POP3, can be used with or without SMTP.
