How to implement the day-to-day management of mail services

Implement day-to-day management of mail services

1. Mail protocol supported by mail client

* Outlook 2003:mapi,smtp,p0p3,imap4,http

* Outlook EXPRESS:SMTP,POP3,IMAP4,NNTP

* Outlook Web Access:http

SMTP protocol: Simple Mail Transfer Protocol, typically used to transfer e-mail messages from a client to a server, or from one server to another

POP3 protocol: Post Office Protocol is an offline mail protocol that uses the C/s mode of operation, and when the client needs a server, MUA (the mail user agent, i.e. the mail client) will establish a TCP connection with the POP3 server, After the POP3 agreement three kinds of working status receive mail. The first is authentication, to confirm the user name and password provided by the client, after the verification passed into the processing state, in this state users can receive their own mail, after the completion of the corresponding operation of the client will be offline, and then into the update state.

IMAP protocol: Internet Message Access Protocol, which enables users to use e-mail programs to access e-mail messages on a mail server, and can effectively get information from multiple computers. It also provides a mechanism for customers to perceive the actions of other users currently connected to this mailbox. When using IMAP4, users can selectively download e-mail messages, or even just part of the message, so IMAP4 is more complex than POP3

MAPI protocol: Access to public folder protocols

2. Enable and deactivate a virtual server

By default, because Smtp,http is the most basic protocol for Exchange, the Outlook 2003 and OWA clients must be enabled to access the Exchange server after it is turned on. Services such as POP3, IMAP4, and NNTP are enabled and, if you need an Outlook Express client to access Exchange, you must manually enable the POP3 or IMAP4 service.

Enabling the POP3 or IMAP4 service requires that you enable the Mircrosoft Express POP3 or Microsoft Express IMAP4 in the window service and enable Exhange and POP3 services in the IMAP4 System Manager.