Exchange ECP and OWA error after update
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…
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March 2, 2020
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…
March 1, 2020
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'".…
January 22, 2020