File tab, Account settings - double click on the account and change the server name. if the server is correct, click More settings and then Outgoing server tab - make sure you are using the correct authentication method.
Diane Poremsky [MVP - Outlook]
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Diane Poremsky [Outlook MVP] Outlook Resources: https://www.slipstick.com https://www.outlook-tips.net
** I don't work for Microsoft, I just volunteer here.**
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