About Chris Johnson

IT innovator Chris Johnson: 25+ years championing Microsoft messaging tech, from Exchange to Azure, driving collaboration solutions across on-prem and cloud platforms.

Entries by Chris Johnson

How to gain access to a user’s source mailbox post migration

Post migration the source user’s mailbox is left in a “dormant state” so that if the need arises you can roll back the user. However, you may want to access the source mailboxes data without having to roll the source user back. This article will explain how to access a source mailbox post migration after […]

Exchange 2010 Architecture Poster Released

The poster helps you understand how the major components of Exchange 2010 work and serves as a quick reminder and a learning tool. The printed version also looks really impressive on your wall! Download your copy here

Can’t Install Exchange 2010 SP1 with Error – Setup previously failed while performing the action ‘Install’

You may receive the following error trying to install Exchange 2010 SP1. We sure did… Error message is as follows: Some controls aren’t valid. Setup previously failed while performing the action “Install”. You can’t resume setup by performaing the action “BuildToBuildUpgrade”. Steps to resolve and be able to install SP1: Open regedit and browse to […]

Exchange 2010 Update Rollup 4 released

Issues that the update rollup fixes Update Rollup 4 for Exchange Server 2010 RTM fixes the following issues: (Get it here) An attachment is not visible when an Exchange Server 2010 user opens a signed mail message by using Outlook 2003 You cannot send a message to a Dynamic Distribution Group in a mixed Exchange […]

Outlook 2003 Client Configuration with Exchange 2010

When you upgrade to Exchange 2010, your clients running Outlook 2007 or later versions will automatically be compatible with the change to RPC Client Access services in Exchange 2010, since they support RPC encryption by default. Outlook 2003 doesn’t use RPC encryption; however, RPC Client Access requires it by default. If you haven’t turned off […]

Issues to be considered while thinking about moving mailboxes to Exchange 2010 using the Microsoft native tools

Below is a table of the issues to be considered while thinking about moving mailboxes using the Microsoft native tools in both the ‘upgrade’ and ‘deployment’ scenarios supported by Microsoft. Note: If you’re using the Priasoft Migration Suite for Exchange this article does not apply to you. Exchange 2003 To 2010 You need to use “move request” […]

Exchange Adoption Patterns

Despite the advantages of moving to Exchange Server 2010, will organizations using an old software product want to upgrade to a newly-released version? It all depends on the organization type. There are different organization types when it comes to adopting software: Early adopters jump onto the software bandwagon as soon as the software is released. […]

Exchange 2010 servers with no Internet Access.. Timeout Issues

Exchange services timeout or long wait times for services or application to start up. This problem occurs when a server has no internet access or occasionally when a server has limited internet access. The cause of this problem is likely related to a routine check of the Certificate Revocation List (CRL) for .NET assemblies. In […]