What is the difference between POP3 and SMTP?
POP3 (Post-Office-Protocol) is a text based protocol used to receive email messages while SMTP (Simple-Mail-Transfer-Protocol) is used primarily to send email messages. In other words, POP3 is for incoming mail; SMTP for outgoing mail. MS Outlook, Outlook Express, Eudora, Netscape are some of the email programs using POP3 and SMTP. If you are using PalauNet email service, then the POP3 and the SMTP server should be “mail.palaunet.com” in your email program.