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Help ... No Writable Calendar

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Help. Help. I have been a very happy Thunderbird user for many years. I have linked my microsoft exchange calendar to thunderbird with the TBSync and Provider for Exchange ActiveSync.

With the upgrade to version 148, those add-ons no longer work.

So I downgraded to 140 ESR and those two add-ons were ok.

But when I tried to link them to my calendar, they would not sync. I received 401 and 403 errors from the automated setups. And the manual setup, asked for my password over and over again. They all worked beautifully before.

Please how can I get them to work again. I do not want to have to shift to outlook.

thank-you

Help. Help. I have been a very happy Thunderbird user for many years. I have linked my microsoft exchange calendar to thunderbird with the TBSync and Provider for Exchange ActiveSync. With the upgrade to version 148, those add-ons no longer work. So I downgraded to 140 ESR and those two add-ons were ok. But when I tried to link them to my calendar, they would not sync. I received 401 and 403 errors from the automated setups. And the manual setup, asked for my password over and over again. They all worked beautifully before. Please how can I get them to work again. I do not want to have to shift to outlook. thank-you

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