Office 365 - Outlook Send/Reply not working

%3CLINGO-SUB%20id%3D%22lingo-sub-1176611%22%20slang%3D%22en-US%22%3EOffice%20365%20-%20Outlook%20Send%2FReply%20not%20working%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1176611%22%20slang%3D%22en-US%22%3E%3CP%20class%3D%22%22%3EOffice%20365%20-%20Outlook%20SEND%2FREPLY%20not%20working%3C%2FP%3E%3CP%3EHowever%2C%20everything%20works%20fine%20when%20I%20use%20my%20Xfinity%20mail%20account.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EERROR%3A%20Message%3A%3C%2FP%3E%3CP%3E%3CSTRONG%3ESending'%20reported%20error%20(0x800CCC80)%3C%2FSTRONG%3E%3CSPAN%3E%26nbsp%3B%3C%2FSPAN%3E%3CSTRONG%3E%3A%3C%2FSTRONG%3E%3C%2FP%3E%3CP%3E%3CSPAN%3E%26nbsp%3B%3C%2FSPAN%3E'None%20of%20the%20authentication%20methods%20supported%20by%20this%20client%20are%20supported%20by%20your%20server.'%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-1176611%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EMicrosoft%20Office%20365%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E
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Office 365 - Outlook SEND/REPLY not working

However, everything works fine when I use my Xfinity mail account.

 

ERROR: Message:

Sending' reported error (0x800CCC80) :

 'None of the authentication methods supported by this client are supported by your server.'

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