After installing AVG Internet Security or AVG AntiVirus FREE some 3rd-party email clients, such as Mozilla Thunderbird, SeaMonkey, or The Bat!, may show that the email server certificate is invalid when you send and receive emails.
The AVG Email Shield uses an advanced scanning method for incoming and outgoing emails over SSL/TLS secured connections. Mozilla Thunderbird, Sea Monkey, and the Bat! have their own certificate stores and may require extra configuration to avoid warnings about invalid Email server certificates.
Refer to the sections in this article for instructions on how to stop warnings about invalid Email server certificates by exporting the Email Shield certificate and importing it into your email client's certificate store.
Export Email Shield certificate
- Open the AVG user interface and go to
☰Menu ▸ Settings.
- Click the Search icon in the top-right corner.
geek:areainto the text box that appears, and select AVG Geek from the search results.
- Scroll to the Email Shield section. Ensure the box next to Scan SSL connections is ticked, then click Perform next to Export certificate.
- Select a location to save the exported Email Shield certificate (for example, your Windows Desktop) and click Save.
- Click OK in the AVG Information dialog.
- Import the Email Shield certificate into your Email client.
Import Email Shield certificate
- AVG Internet Security 20.x
- AVG AntiVirus FREE 20.x
- Microsoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bit
- Microsoft Windows 8.1 / Pro / Enterprise - 32 / 64-bit
- Microsoft Windows 8 / Pro / Enterprise - 32 / 64-bit
- Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1, 32 / 64-bit