XCLN: How to Maintain Calendar Functionality for IMAP4 and POP3 Clients (273913)

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When you connect to Exchange Server 5.5 by using either a POP3 or IMAP4 client computer, calendar-related messages, for example, meeting requests or cancellation messages, are displayed in plain text and may not be added to your calendar automatically.

You can configure Exchange Server to provide a URL to an Outlook Web Access (OWA) server that you can use to view a text version of calendar-related mail. This URL references an OWA server and the same calendar-related message that was received. When you access this URL by using a POP3 or IMAP4 client, your browser starts and you are connected to the OWA server. An HTML version of the same calendar-related message and an HTML version of the user's calendar (from Exchange Server) is then displayed. This process provides calendar functionality to POP3 and IMAP4 clients.

NOTE: Before you configure this feature, you must configure the POP3 or IMAP4 connection first. You must also have access to an OWA server that is able to access your mailbox.

To configure Exchange Server to provide a URL to an Outlook Web Access (OWA) server:

1. Start the Microsoft Exchange Server Administrator program, right-click the site level Protocols container, and then click Properties.
2. Click the General tab, and type the name of your OWA sever.NOTE: Type servername, not http://servername/exchange.

If you need to change this setting after you have entered it, restart all Exchange Server services, so that the setting can be updated faster. Also, if any POP3 or IMAP4 users are logged on while you are configuring this property, they must log off and the log on again after the change is made.

NOTE: If the OWA server is accessible on the Internet, the servername may be entered as the fully qualified domain name (FQDN) of the server, for example, www.webservername.com.

When you set this property at the site level, it affects all users in the site. If you do not want all users to be affected,, you can set this property for individual recipients. To do this, right-click the user, click Properties, and then click the Advanced tab.

When you have completed this procedure, when you send any meeting-related messages or custom forms, a URL to the OWA server is included in the message.