After upgrading Exchange server to the latest patch or CU, you found the error page after login to ECP or OWA. OWA will be showing a login screen that says ‘bad request’ after entering credentials and ECP will be showing “Could not load file or assembly ‘Microsoft.Exchange.Common, Version=15.0.0.0 …” Resolution 1. Open IIS Manager. Expand […]
Upgrade Exchange 2013 – Couldn’t resolve the user or group
Today, I run the maintenance to upgrade the Exchange Server 2013 from CU 20 to CU 23. However, I got the error on step 14 that says “Microsoft.Exchange.Data.Common.LocalizedException: Couldn’t resolve the user or group”. I checked and confirmed the user/group is already in Active Directory. Below is the full detail of the error. As you […]
Recipient not found by Exchange Legacy encapsulated email address lookup
When you send an email to a recipient, you get IMCEAEX NDR that said “Remote Server returned ‘550 5.1.11 RESOLVER.ADR.ExRecipNotFound; Recipient not found by Exchange Legacy encapsulated email address lookup’”. This issue is happening when you migrate a mailbox with no direct path. Resolution You need to create an X500 email address alias and set […]
Exchange SSL Certificate Services Greyed Out
When you want to change/manage services for Exchange Server 2013 or above through the Exchange Admin Center, you found the checkboxes options are greyed out and can’t be changed. This is happening because the Exchange server will not allow you to un-assign or remove the SSL Certificate from services. To resolve this issue, you should […]
Outlook Web App (OWA) Authentication Issue – Exchange 2010
We recently got an authentication issue on Our Outlook Web App (OWA) for Exchange 2010. The OWA itself can be loaded. However, when you try to log on (Authenticate) there is an issue that said ” OWA might be temporarily down or it may have moved permanently to a new address. “ There were no […]
Searching Message Tracking Logs in Exchange Server
If you want to search for message delivery information on Exchange Server, you can use Exchange Management Console. Unfortunately, the Tracking Log tool in Exchange Management Console (EMC) doesn’t allow to use wildcard characters when trying to search of mails that has been sent or received from a certain domain. Exchange Management Console can only […]
Remote Desktop Error “User profile cannot be loaded” on Exchange Server
Today, I got an error “User profile cannot be loaded” when my new Exchange Administrator login to the Exchange server for the first time. My Exchange environment is using Windows 2012 R2 and Exchange Server 2013. Event Log After checking on the event log using the user that already have an access to the server, […]
Exchange 2013: HTTP Error 503 Service Unavailable
Today, one of my exchange servers has an issue. When I tried to connect via https (ECP/OWA) or via outlook (within the network), I got 503 errors on ECP/OWA and Disconnected/Trying to connect in Outlook. Restarting the Exchange server doesn’t help. After did some search and checking the Exchange server, I found this error generally occurs […]