Email Undeliverable | Error code 5.1.10 in Office 365 | Update accepted domain settings | Exchange

This video will explain you the issue you might face with the email delivery for the Error code 5.1.10 in Office 365 and resolution of the same.
It also explains if you have multiple domain on Microsoft 365 and Exchange Online is your primary domain and sending an email from Exchange domain to the domain email on Google Workspace and same is not getting delivered. With just settings change in your Microsoft 365 exchange you should be able to resolve the issue.

[xAngoryx]

What settings do you have on your domains for this to work? I tried this fix but still got the bounce back issue. Although in my domains I have grey No services.

[vish]

Sir, I send an email to one person from my google account to that person google account. But when I send them everytime I am getting an email in spam saying that the person email address doesn't exist with similar instructions as you mentioned in video. I tried to send many times but I am getting it every time and I also not using outlook still getting error of MS 365.can you please help me to resolve my problem?

[emonali]

How can send unlimited hotmail? Can you tell me? And how to configure unlimited Hotmail? In exchange online

[libortesar]

OK Man, did you fix it or no0? if yes how. Total mess this video

[SiddharthBirje]

Already had the Authoritative option selected by default, still it didn't work

[EvictionNotice]

Can you please add subtitles or something 😂