Count unread mails From Exchange Server 2003 (outlook Web App) from C#

Count unread mails From Exchange Server 2003 (o开发者_开发问答utlook Web App) from C#

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This article might help you.

Considering you are running 2003 you probably need to look into WebDav. Exchange 2007/10 have a nice set of WebServices.

Check this link: http://blogs.msdn.com/b/vikas/archive/2009/03/03/howto-webdav-exchange-2003-poll-for-unread-emails-notify-admin-if-a-predefined-level-is-reached.aspx