553 sorry, that domain isn’t in my list of allowed rcpthosts

The error is basically in Outlook, and requires you to check the option on “My Server requires Authentication”

Open outlook >> Tools >> Accounts
Click on mail account, and click on Properties

There click on Server tab, and you will see option “My Server requires Authentication”, click that check box.

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About shk

shk is a DevOps engineer with more than 12 years of experience in different organizations. He enthusiastic about learning new technologies and shares his knowledge through his blogs.

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