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unable to send email on new install of Thunderbird 128.12.0esr (64-bit)

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install on Dell studio 1555 8 gb ram running widows 64 bit windows 10 home solid state drive

Unable to send any emails although all the server settings are correct have the attached dialogue box come up see screenshot. suspect this is not directly a prob with Thunderbird as was having problems with some undelivered email with outlook.

any ideas recive mail is fine

thanks Chris G

install on Dell studio 1555 8 gb ram running widows 64 bit windows 10 home solid state drive Unable to send any emails although all the server settings are correct have the attached dialogue box come up see screenshot. suspect this is not directly a prob with Thunderbird as was having problems with some undelivered email with outlook. any ideas recive mail is fine thanks Chris G
Attached screenshots

Chosen solution

You appear to using this add-on, so try sending with the add-on disabled.

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Chosen Solution

You appear to using this add-on, so try sending with the add-on disabled.

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thanks a lot your a genius Chris

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