Victor Stodell

In a firewalled Exchange environment it is always easier if Exchange communicates on static ports. Normally RPC on port 135 is used to initialize the communication. Any further communication is made through a port dynamically selected by each service on the Exchange-server. I will not go deeper into how this is made, because it has been described very well in this blog: http://www.proexchange.be/blogs/exchange2007/archive/2009/05/18/configuring-static-ports-for-exchange-2007.aspx Except from the traditional bribes to the network guys, there were just a couple of registry settings on the Exchange-server and some of the clients to make everything work as a charm, even through the firewalls.

I ran into a problem this week that caused a lot of headaches. In an existing Exchange environment everything seems to be working just fine for existing users. The problems occur when you try to configure an account on a new client. This scenario did not apply to all the mailboxes in the organization. These are some of the messages that were presented during different stages in the configuration: Outlook cannot log on. Verify you are connected to the network and are using the proper server and mailbox name. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action. The name cannot be resolved. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action. The action cannot be completed. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action. Your server or mailbox names cannot be resolved. The environment is a pur...

Me and my co-workers recently ran into an issue with our iPhones. All of a sudden the camera icon dissappeared and it required a hard reset to get it back. At least that is what we thought. When i set up my Exchange account in the iPhone, the camera icon dissappeared again. It turned out to be our Exchange server that caused this behaviour. A couple of weeks ago we upgraded our Exchange environment to Exchange 2007. In Exchange ActiveSync it is possible to set policys for the connecting devices. One of the policies allows the use of the camera and this is disabled in the default policy.