mail protection problem

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I have installed the latest version of Avast Free Antivirus on my windows 10 machine.
If I use the component "mail protection" my thunderbird client can't receive or send email(if I unistall or turn off it, then I can use my client properly).
I've tried  to export the certificate then install it in thunderbird without any results.
How can I use the extension of avast with thunerdbird ?
Thank you in advance.

[Pondus]

have you tried FAQ ?  >>  search word mail  >>  https://support.avast.com/en-eu

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Yes, but without result.

[bob3160]

Does this help:
https://support.avast.com/en-eu/article/Troubleshoot-invalid-email-certificate

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Does this help:
https://support.avast.com/en-eu/article/Troubleshoot-invalid-email-certificate

I have already exported the certificate from avast and imported in thunderbird but I still have the problem.

[bob3160]

Guess you'll need to wait for someone that actually uses Thunderbird to offer additional help.

[REDACTED]

Guess you'll need to wait for someone that actually uses Thunderbird to offer additional help.

Ok, I will wait.
Thank you anyway for the answer.

[HK]

Hi giasco!

What do you mean by "my thunderbird client can't receive or send email" - do you see any error message?

Could you please enable debug logging (open avast ui > settings > general > maintenance > logs), reboot computer, reproduce the issue with thunderbird and send me mail.log file located in c:\ProgramData\AVAST Software\Avast\log\ folder?

Thanks in advance,
HK

[REDACTED]

Hi giasco!

What do you mean by "my thunderbird client can't receive or send email" - do you see any error message?

Could you please enable debug logging (open avast ui > settings > general > maintenance > logs), reboot computer, reproduce the issue with thunderbird and send me mail.log file located in c:\ProgramData\AVAST Software\Avast\log\ folder?

Thanks in advance,
HK

Hi HK,

Yes Thunderbird give me : "error 10013".
I'm sending you mail.log


thank you.

[HK]

Thanks for the reply. Do you have any other security software (firewall) installed along with avast? If yes, please try to create the rule to enable avast in/out connection.

Thanks,
HK

[REDACTED]

Thanks for the reply. Do you have any other security software (firewall) installed along with avast? If yes, please try to create the rule to enable avast in/out connection.

Thanks,
HK

It was a firewall of another software.
Now with the rule to enable avast I have no problem with the e-mail.

Thank you.