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Thunderbird error "User Already Soecified"

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jon.bygate
jon.bygate
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Hi Out of the blue, I am now seeing this error message when trying to open Thunderbird on my laptop. As far as I know, nothing has changed, I'm using v140.30esr and have made no other changes. Weirdly email works OK on my iPhone using their Zoho email app.

I've tried disabling add-ons in Thunderbird, switching off MacAfee Firewall but it makes no difference.

Is there some reset you can perform please?

Thanks Jon

Hi Out of the blue, I am now seeing this error message when trying to open Thunderbird on my laptop. As far as I know, nothing has changed, I'm using v140.30esr and have made no other changes. Weirdly email works OK on my iPhone using their Zoho email app. I've tried disabling add-ons in Thunderbird, switching off MacAfee Firewall but it makes no difference. Is there some reset you can perform please? Thanks Jon
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