Resolving Exchange 2010 Queue 4.2.0 ambiguous address error
If you have run into the message in the Exchange 2010 queue about delivery delayed or “will retry” messages with error message 4.2.0 and an ambiguous address message, we can…
Author: Brandon Lee
Brandon Lee is the Senior Writer, Engineer and owner at Virtualizationhowto.com, and a 7-time VMware vExpert, with over two decades of experience in Information Technology. Having worked for numerous Fortune 500 companies as well as in various industries, He has extensive experience in various IT segments and is a strong advocate for open source technologies. Brandon holds many industry certifications, loves the outdoors and spending time with family. Also, he goes through the effort of testing and troubleshooting issues, so you don't have to.
How to setup a mobile hotspot with Android and CM9
We have all been there, stuck in a location where there is no WIFI service and we desperately need to connect our laptop, tablet, or other mobile device to the…
How to setup Mikrotik 751 Router for home or office
Mikrotik makes great quality products that can do just about anything you would like them to do. The RB751 routerboard can be bought for cheap on the net and we can…
How to correct reverse DNS issues
Most of the time people think of DNS as being the service that helps us to resolve a name to an IP address and that is certainly true, as without…
How to use Windows Server Backup to backup files
Backing up files using the builtin backup utility in Windows Server 2008 R2 is really a piece of cake. Â We will take you through the steps in the WBADMIN.MSC interface…
TLS encryption not working Exchange 2010
In troubleshooting TLS encryption problems with Exchange 2010, there can potentially be several places that an administrator should look to find where TLS encryption is breaking down. Â There are a…
How to Move your DNS services to the Cloud
As the direction for more and more IT shops as well as bigger enterprise environments shift to the cloud and cloud services, organizations and businesses are looking for ways to…
Installing Ubuntu 12.04 Desktop step by step
Ubuntu 12.04 LTS which was released just a few days ago has many buzzing about the features, stability, and performance. Â This is truly a great Linux desktop OS. Â While Unity…
Syncing passwords to Live@EDU
One of the pieces to setting up the infrastructure to send password changes to a synchronization server like Forefront Identity Manager 2010 is installing the Password Change Notification Service on…
Untangle SPAM tarpitting not working
Untangle provides powerful SPAM protection via the SPAM filter rack module. Â Using this powerful tool, admins can effectively block the majority of SPAM threats to their network. Â One of the…