NDR 550 5.5.1 User Unknown for Internal Relay Domain
An NDR 550 5.1.1 User Unknown error may occur in an Exchange Server environment that uses Internal Relay domains.
October 19, 2012
Latest Articles
Upgrading to Exchange Server 2013
Discover the deployment and co-existence information and processes for upgrading an existing organization to Exchange Server 2013.
October 14, 2012
Exchange Server 2013 Reaches RTM
Microsoft has announced that Exchange Server 2013 has reached RTM and will be generally available in Q1 2013.
October 14, 2012
Speed Up Multi-Server Message Tracking Log Searches with PowerShell Remoting
How to use PowerShell remoting to speed up message tracking log searches across multiple Exchange Hub Transport servers.
September 28, 2012
Searching Message Tracking Logs by Email Subject
How to search Exchange Server message tracking logs for keywords and phrases in email subject lines using PowerShell.
September 26, 2012
Exchange and Lync Videos from TechEd Australia 2012
Check out these Exchange Server 2013 and Lync 2013 videos from TechEd Australia 2012.
September 25, 2012
Searching Exchange Server Message Tracking Logs by Sender or Recipient Email Address
How to search Exchange Server message tracking logs using the sender or recipient email addresses as the search criteria.
September 21, 2012
Searching Message Tracking Logs by Time and Date Range
How to perform Exchange Server message tracking log searches in PowerShell between specific date and time ranges.
September 20, 2012
How to Deal with SSL Requirements for Exchange when Certificate Authorities Won't Issue You a Certificate
How to meet the SSL requirements of Exchange Server when certificate authorities will not issue you certificates for your server names.
September 1, 2012
A Guide to Back Pressure in Microsoft Exchange Server
A guide to the back pressure condition that can impact Microsoft Exchange Hub Transport and Edge Transport servers.
August 27, 2012
A Look at Exchange Server 2013 Resource Mailboxes
An overview of the room and resource mailboxes in Exchange Server 2013.
August 22, 2012
Changes to Test Cmdlets in Exchange Server 2013
Exchange Server 2013 brings with it some new PowerShell cmdlets, and retires at least one other.
August 21, 2012