Knowledgebase: E-mail
Email bounce with #550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ## error
Posted by Matthew Villnave on 15 February 2016 03:39 PM

Method 1

1.       Open Outlook.

2.       On the File tab, click Options



3.       Click the Mail tab. 


4.       Under Send Messages, click Empty Auto-Complete List.

5.       Click Yes.

Outlook will generate a new nickname cache. 


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