When an Outlook 2007 user has their mailbox migrated from Exchange 2003 to Exchange 2007 they may start seeing a certificate mismatch error appear when launching Outlook. This problem will occur if the following conditions are true: the internal DNS namespace does not match the external DNS namespace (eg domain.local for internal and domain.com.au for […]
When you introduce a the first Exchange Server 2007 server into an existing Exchange Server 2003 organization you may encounter an issue with mail flow between the two servers. Emails sent from Exchange 2007 to Exchange 2003 work fine, however emails sent from Exchange 2003 to Exchange 2007 do not work and can be seen […]
Microsoft has released Update Rollup 6 for Exchange Server 2007. The update includes a critical security fix outlined in bulletin MS09-003. The full list of fixes can be found here, and the download files are here. I’ve updated our Exchange servers here last night and it went smoothly, no problems encountered. Make sure you read […]
From Tom Shinder: For years we’ve been asking for multiple ISP support for our ISA firewalls. Well, that never happened, but the great news is that TMG firewall now feature multiple ISP support. You can use two Internet connections, either for failover or load balancing. You can even set different weights on your ISPs, […]
When installing Exchange Server 2007 roles there is different default behaviour between the GUI and the command line that you should be aware of. As long as you are aware of this behaviour when planning command line or unattended installations you won’t get caught out.
Outlook Web Access on Exchange Server 2007 may stop working after an Update Rollup is applied. Users who connect to OWA may receive a browser script error or a blank page with a URL of: https://mail.yourdomain.com/owa/auth/logon.aspx?url=https://mail.yourdomain.com/owa/&reason=0 This problem can be caused by either of these conditions: Cause #1 The Update Rollup was applied while […]
Users may report that their Exchange mailbox displays in an incorrect foreign language in Outlook and Outlook Web Access. This issue may occur when the Languages attribute of the mailbox is incorrectly set. You can view the language of a mailbox using the Get-Mailbox cmdlet. [PS] C:\>Get-Mailbox -Identity "John Smith" | fl name, languages Name […]
Microsoft has been working on the next version of Exchange Server (E14) for a few years TAP customers and their Live@edu program, and are now starting to bring details of the upcoming version to the public. The first interesting detail is the continued move towards the “software as a service” model (eg Hosted Exchange) to […]
When deploying or troubleshooting Exchange servers I regularly encounter the need to jump onto a host outside of the customer network to perform remote access testing. Over the years I’ve gotten into the habit of maintaining a host running 24/7 on my home internet connection that I can RDP to and perform these test. While […]
From the Microsoft Exchange Team Blog: Despite our attempts at documenting various break/fix scenarios, it can often be frustrating when trying to locate the information you need to resolve an issue as quickly as you would like. I decided to share this information in an attempt to help you resolve the majority of issues that […]
The blog is reaching the end of its third year online. I wrote my 2007 roundup at about this time last year and now its time to take a look at what happened in 2008. Visitor Growth In 2007 I was relying on Awstats provided by my web host for visitor statistics. Those stats showed […]
With the right configuration and ongoing tuning the built in Exchange Server 2007 anti-spam features can be effective in many environments. One thing I’m not a fan of though is the quarantine feature. You can read more about it in my latest post to AllSpammedUp.com here. Link: Managing spam quarantine for Exchange Server 2007