Outlook Certificate Issue with AVG

Hi Gavin,

We're glad to look into this & help you.
Please share us the screenshot of the message that you receive while accessing Outlook for better clarity. 
Also, clarify whether you're able to send emails.

I have just started getting Server Certificate errors when I open outlook. The certificate comes from AVG but it is not valid. How do I fix this so I can get my emails? Thank you

Hi Gavin,

We're glad to look into this & help you.
Please share us the screenshot of the message that you receive while accessing Outlook for better clarity. 
Also, clarify whether you're able to send emails.