AVG certificate pop-up when sending from POP accounts in Outlook 2016

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Hello

As per the issue here, https://support.avg.com/answers?id=9060N000000gfepQAA, I have the exact same problem, since I reformated my SSD and reinstalled Windows, a couple of days ago. I have never had this issue before.

Now, when I try and send from any of my POP3 accounts, that same pop-up box appears. This pop-up only seems to happen the first time I send, say, after rebooting or closing Outlook and relaunching it. If I send from any of my 10 POP3 accounts, the pop-up stays away during my 'session', having appeared once.

I am using Outlook 2016. I simply say yes by default to make the window go away, although I have viewed the certificate and installed it in my Personal store, in both ways: through geek:area (exporting it) and through the pop-up. My POP3 are configured to send via port 587 and STARTLS.

If I turn off Email Shield, the problem goes away. Put it back on, and pop-up comes back. I have no such issues with my 6 Exchange accounts, only the POP ones.

However, the above KB is not for Outlook. So, does something need to be done AVG-wise to stop this pop-box from randomly appearing when sending from my POP accounts?

Hello Anthony,

Thank you for writing back to us in your own post.
We appreciate your time & efforts in trying to fix this issue.
We've sent you an email with further assistance. Please check your inbox/spam folders for the email and use it to revert to us.