A new unexpected issue with Avast and Thunderbird

[davide.pozzani]

Hello, I've just reinstalled all my programs on my desktop PC and one of the first was, of course, Avast. Then, using Thunderbird 60.4, I found myself unable to send any message from any of my accounts. A message always appears stating that a certification is missing. I'm currently running the same programs with the same configurations (even for Avast itself) in my laptop without issues. The only way I can send email from my PC is by deactivating the antivirus. In that case no pop-ups appear. Everything is up to date with the last patches and Windows (7 64 bit) is also updated.
One of my account is with Google and it has the same problem with the server SMTP while Avast is running.
Do you know how can I solve the problem?
Thank you for any advice or information.
Cheers.

[alanb]

See this Avast FAQ: https://support.avast.com/en-gb/article/Troubleshoot-invalid-email-certificate

[davide.pozzani]

nvm.. I've just resolved: reinstalling Avast seems the solution. Thunderbirds works fine, at least for now. Now I know what program I should install first and what later.
Thank you anyway.
Cheers

P.S. In order to post this message I had to answer '2018' for the question 'What is the current year?'. Please have a look at that too 

[bob3160]

nvm.. I've just resolved: reinstalling Avast seems the solution. Thunderbirds works fine, at least for now. Now I know what program I should install first and what later.
Thank you anyway.
Cheers

P.S. In order to post this message I had to answer '2018' for the question 'What is the current year?'. Please have a look at that too 

The 2018 issue has already been reported to Avast. Monday is almost here.