
Send and receive Gmails failing today.
Just today, not able to send or receive emails (google mail). Trying to send gives an error: 'Send failed. Peer's certificate... invalid signature'. Receiving is silent - just no downloading. Google's web client works ok.
Not aware of anything changing. Thunderbird is up to date (128.11.0esr (64-bit)). Windows 11.
I've not changed any settings ( still SSL/ OAuth2)
any help much appreciated. thanks Gordon