Last week Microsoft announced Rollup 8 for Exchange 2007 SP1. This rollup was not released for Exchange 2007 RTM.

Download : Rollup 8 for Exchange 2007 SP1 

When you want to adjust the Maximum Attachement Size in Exchange 2007, you can use this script to check where the size limits are set.

The only Message Size limit that is not set through Powershell, is the one for Outlook Web Access. This is done through the web.config file on the Client Access Server.

• First make a backup of the web.config file (default location c:\Program Files\Microsoft\ExchangeServer\ClientAccess\Owa).
• Open the file with Notepad
• Change the line <httpRuntime maxRequestLength=”30000″ />
  Where 30000 is the maximum message size (in kilobytes)
• Save the file (nothing else needs to be done)

When you want to upgrade to Exchange 2007 SP1, from the RTM version, follow these steps :

Installation Steps

• Install Net 2.0 SP1 on your Exchange 2007 Servers
• Reboot the servers
• Prepare the Schema: Continue reading »

Sometimes users come to you and say…I’ve got an attachement which is blocked by OWA. It says :

Outlook Web Access has blocked access to attachments. Blocked attachments: file.jpg, otherfile.otherextension.

When you need to configure (include or exclude) these Continue reading »

I was looking for a way to create a custom signature for all users within our company. Unfortunatly with Exchange 2007 there is no way to achieve this, besides adding a Disclaimer with a transport rule.

After searching I came accross a login script with wich you can create an automated signature based on Active Directory information.

Maybey a nice addition in Exchange 2007 SP2??

A great blog about using CCR (Cluster Continues Replication) on a Windows 2008 Cluster.

Article : Brettjo

Here’s a quick overview of the Exchange 2007 requirements :

General Domain Level Requirements

• At least 1 Windows 2003 Server Domain Controller & Global Catalogue Server
• Windows Domain & Forest in Native Mode

Edge Transport Server (Preferably a WorkGroup Server NOT Domain Member with 2 NIC Configuration)

• Windows 2003 R2 SP1 or above
• Domain Suffix Appended to the Server Name (Computer Name / Change / More)
• .Net Framework 2.0 Continue reading »

I found an article which clearly describes the usage of Outlook Web Access (OWA) in a mixed environment with Exchange 2000, 2003 and/or 2007.

Article : Technet Article Outlook Web Access and Exchange 2007, Exchange 2003, and Exchange 2000 Coexistence

We’ve got some weird errors on our Exchange 2007 Mailbox Server. We received this error :

Event ID : 9823
Source : MSExchangeIS Mailbox Store
Log : Application Log
An invalid event history watermark has been detected by background cleanup. The watermark will be deleted.
Database: ‘First Storage Group\Mailboxstore1′.
Consumer: ‘df4b5565-53e9-4776-a824-185f22fb3ca6′.
Mailbox: ‘4ec8c6f9-dbab-43db-a8ac-cb6f62fc556c’.
Watermark counter: ‘0×4AC2AD’.

Funny enough there is no Continue reading »

By default an Exchange 2007 Transport Server has a queue placed in the following location, if you installed Exchange on the C-partition:

C:\Program Files\Microsoft\Exchange Server\TransportRoles\data\Queue

Because this can cause problems if your queue Continue reading »