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error message 500 "something went wrong"

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I am unable to get my email to work - when I open Thunderbird I get the message "500 something went wrong and we couldn't complete your request". New emails aren't coming through on my computer, nor can I delete existing emails. I can however still send and receive on my phone, which is weird.

I am unable to get my email to work - when I open Thunderbird I get the message "500 something went wrong and we couldn't complete your request". New emails aren't coming through on my computer, nor can I delete existing emails. I can however still send and receive on my phone, which is weird.
Ìsopọ̀ yíyà aṣàfihàn

Ọ̀nà àbáyọ tí a yàn

This just in:

Version 1.4.4 Released Sept. 25, 2025 343.6 KiB Works with Thunderbird 115.0 - 144.*

- Support Thunderbird 144 - A number of workarounds for the "Error 500" bug during authentication that Office365 introduced recently.

https://addons.thunderbird.net/en-US/thunderbird/addon/owl-for-exchange/versions/1.4.4

Ka ìdáhùn ni ìṣètò kíkà 👍 1

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Is this an Exchange account that you access with the Owl add-on, or the Exchange support in a beta version of TB?

Helpful?

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It's an Exchange account that I access with the Owl add-on.

Helpful?

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I think it's best to contact the Owl developer. This add-on often encounters issues when the Exchange system is changed, but the remedy is usually fairly prompt.

Helpful?

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Thank you - will give that a go.

Helpful?

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Ọ̀nà àbáyọ Tí a Yàn

This just in:

Version 1.4.4 Released Sept. 25, 2025 343.6 KiB Works with Thunderbird 115.0 - 144.*

- Support Thunderbird 144 - A number of workarounds for the "Error 500" bug during authentication that Office365 introduced recently.

https://addons.thunderbird.net/en-US/thunderbird/addon/owl-for-exchange/versions/1.4.4

Helpful?

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