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I guess this should help- <br />
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<a href="http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB05270" rel="ugc">http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB05270</a>
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I guess this should help-

http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB05270 [http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB05270]

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I have a brand new installation of Blackberry Enterprise Server Express running on an Exchange 2007 Server. &nbsp;Everything is working fine except for calendar synchronization. &nbsp;Anything I do in the calendar within Outlook will show on the Blackberry calendar, but nothing I do in the Blackberry calendar will show in the Outlook calendar. &nbsp;By anything I mean creating, editing and deleting appointments. &nbsp;It is effecting all blackberries. &nbsp;Any suggestions on how to attack this?
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I have a brand new installation of Blackberry Enterprise Server Express running on an Exchange 2007 Server.  Everything is working fine except for calendar synchronization.  Anything I do in the calendar within Outlook will show on the Blackberry calendar, but nothing I do in the Blackberry calendar will show in the Outlook calendar.  By anything I mean creating, editing and deleting appointments.  It is effecting all blackberries.  Any suggestions on how to attack this?

Issue with Blackberry Enterprise Server Express calendar synchronization

The BlackBerry operating system is proprietary; releases beginning with BlackBerry 10 include support for applications written for the Android platform. As such, developers can use almost any programming language that can be used for other smartphones, including Java, Adobe Air, .NET and HTML5/JS (via an app packaging framework like PhoneGap) .

BlackBerry Programming

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

BlackBerry is a line of wireless handheld devices and services designed and marketed by BlackBerry Limited. BlackBerry devices can record video, take photos, play music and also provide functions such as Web-browsing, email messaging, instant messaging, and the multi-platform BlackBerry Messenger service, and specializes in secure communications and mobile productivity.