Office 365 exchange url :https //outlook.office365.com/ews/exchange.asmx not working

Question

Hello Team,
We used office 365e xchnage service url to send email for an application.
Now we observed emails are not being read and send using office365 exchange service url
https //outlook.office365.com/ews/exchange.asmx .

Please let us know what has been changed and let us know the steps to make it work

Thanks
Athulya

Answer 1

Sounds like you are using basic auth? Thats been disabled:

https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/deprecation-of-basic-authentication-exchange-online

Answer 2

@Athulya Pillai

You could access this "https://aka.ms/DiagEnableBasicAuthinEXO" and run a diagnostic for your tenant. You will know whether basic auth was blocked:

You can also temporarily enable it for your tenant. It will take about an hour for it to take effect:

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