Hi Steff,
We are sorry to hear this.
We will help you to resolve the issue.
Please refer the following article and follow the steps mentioned in the article https://support.avg.com/SupportArticleView?urlname=AVG-Troubleshoot-invalid-email-certificate
Keep us posted.
Hi,
I’m a programmer. I have an issue sending email from my development PC, via our mailserver, and I’ve nailed it down to AVG’s Email Shield. Short version: if I turn off Email Shield, the problem goes away.
The issue is AVG replacing our mailserver’s certificate with something that’s preventing Mailkit SDK from validating it. Specifically (for the benefit of anyone else searching this): "The revocation function was unable to check revocation for the certificate".
When I inspect what’s going on, I find the Issuer has been replaced with: “CN=AVG Web/Mail Shield Root, O=AVG Web/Mail Shield, OU=generated by AVG Antivirus for SSL/TLS scanning”.
If I turn off AVG Email-Shield, the issuer is what I expect: "CN=R3, O=Let's Encrypt, C=US" and my software can send email via our mailserver.
I tried adding an exception in AVG but it’s having no effect (I suspect it only works for http, not email).
Please can you help me? How do ai convince AVG to let me send email through our mailserver?
Thanks!
Hi Steff,
We are sorry to hear this.
We will help you to resolve the issue.
Please refer the following article and follow the steps mentioned in the article https://support.avg.com/SupportArticleView?urlname=AVG-Troubleshoot-invalid-email-certificate
Keep us posted.