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NagasaiAndra-1151 avatar image
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NagasaiAndra-1151 asked KaelYao-MSFT commented

Legacy Protocols Blocking

Hi team

As Microsoft is planning to Block the Legacy protocols in the month of October , We have an internal application called T-CRM that is used to sync contacts from CRM application to the Outlook & also if any meeting scheduled in CRM will reflect in Outlook .

To use T-CRM with Outlook Legacy protocols are being used . Wanted to know if there is any possibility of using legacy protocols even after Microsoft blocked it globally for all the tenants.

Regards
Naga sai

office-exchange-online-itpro
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AndyDavid answered

None after October :)
https://techcommunity.microsoft.com/t5/exchange-team-blog/basic-authentication-and-exchange-online-september-2021-update/ba-p/2772210

The vendor will need to ensure its using Modern Auth since they should know people wont be able to use their product after the cut off date.

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