How to fix Bounce Back Emails "Your email program is using outdated address information"


Sample Error: 



SOLUTION:


  1. On Outlook go to File > Options > Mail > Send Messages > Empty Auto-Complete List -> OK



  1. Once this is done, let the user create a new email with the intended recipient by typing his/her full name and then  hitting “CTRL+K”. An underline should appear on the user’s name to indicate that the email address has been found.



  1. Send a test email to confirm issue is resolved.





 

REFERENCES:

https://www.petenetlive.com/KB/Article/0001468

https://docs.microsoft.com/en-US/exchange/troubleshoot/email-delivery/imceaex-ndr

https://social.technet.microsoft.com/Forums/en-US/1994b6cc-fe6e-4166-bacb-3f0172fb644c/exchange-online-outlook-cache-and-ndrs?forum=onlineservicesexchange








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