Can't find what you need? Try....Google
IMAP4 allows a mail client to access and manipulate email messages on a remote mail server as if they were local, without the need to download the message...   
POP3 or APOP authentication

APOP is a POP3 setting that encrypts your username and password, it is an authentication mechanism designed to protect your POP3 account password when you are checking email.

APOP authentication does not require your account password to be sent as plain text to the POP3 mail server, however, not all Internet providers support it.


POP3 Post Office Protocol (POP3 RFC 1939) Version 3 is a standard internet protocol used for retrieving Internet email. It is used by your email client (Eudora, Netscape Communicator, MS Outlook, etc.) to communicate with a SMTP mail server.


Difference between "POP" and "IMAP"

Post Office Protocol (POP), emails are delivered to a mail server, users connects to the mail server and download mails and save them in their mail client (email program).

eMail CRM Freeware I recommend it. It maximize the life-time value of my customers--Quick Tour
emails Art of eMail CRM How to apply minimum efforts for maximum result
at the shortest time?
eMail Bolts & Nuts Interesting emails stuff that you should  know eMail Broadcasting
eMail Marketing Tips Great email marketing strategies and ideas to help you increase sales
Sun Tzu Free eBook Sun Tzu Art of War Leaders without thoughtful strategy invite defeat.
Useful Web Sites
Freeware, shareware tools to help you speed-up your Internet connection
Guest Book  |  Minute Wisdom
Filled with stolen moments, lost dreams, and too many 'if only'

Internet Message Access Protocol Version 4 are used to hold email messages and allows users to view message heading or

allows a client (email program) to access and manipulate email messages on a remote mail server as if they were local, without the need to download the message or to deliver the message to mail readers and can relay the email message to SMTP mail servers using POP3

IMAP4 does not specify a means of posting mail--this function is handled by a mail transfer protocol such as SMTP

Mail readers - or mail user agents allows you to read emails residing in your mailbox on the mail server or download it onto your desktop pcs mail client.

User Agents - A program (ie: Eudora) or an editor that let users create, edit, compose, store and send emails to a mail server, polls a mail server for mails, download and display mails, as well as using POP3 to talk to mail servers.
(See: How email works)

If you are using your own mail server program...See: Mail Server FAQs

SMTP - Simple Mail Transport Protocol are used for sending and receiving email messages. It is a protocol governing email transmission and reception. Email servers uses a variety of protocols to communicate with the Internet and SMTP

POP3 (Post Office Protocol) are for sending and retrieving mails from a mail server.


Mike Enlow
Online Stealth
Marketing eBook


100% effective.
I recommend it.

  An easy way
stop spam getting
into your PC



valued contribution
that I and the rest of my team sincerely appreciate it. We have checked your software twice and it is good." Alex