Email Popup Asking About Certificate

Avast Free Antivirus / Premium Security
1

i’ve had Avast free AV for a few years, yesterday I purchased the premium version.

Now every time I open my Outlook I get this message. I installed the certificate, but still get the message.

how can I make it stop? I’ve asked my Host but they can’t help.

2

Is this what I should do, import this cert from Avast?

3

Simply click yes (use this server)