Error code 0x8007274d. Cannot see any problem with firewall and Windows 10 is up to date.
From what I have seen the 0x8007274d error seems to be caused by issues within Microsoft's Mail App.
If you have tried following the advice from Paulina_V and are still getting that error, you could do worse than check out this thread on the Microsoft Community Forum. Windows 10 Mail App not sending/receiving emails. Error Code: 0x8007274d
The original poster on that thread reported they were able to resolve the 0x8007274d error by uninstalling and then reinstalling the Windows Mail app. (Scroll down to the penultimate post in that thread to read what they say.)
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