Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Thunderbird no longer accessing Gmail

  • 4 replies
  • 1 has this problem
  • 8 views
  • Last reply by Matt

more options

Running TB 78.11.0 in Windows 10 21H1. Being running TB for years. Last couple of days no longer accessing Gmail when press Get Mail button get box saying Certificate not trusted and asking me to add a security exception. I have changed nothing in TB account settings or Gmail. Gmail messages accessable OK via web browser or iPad. Is anyone else seeing this, and any ideas of solution.

Chosen solution

I assume Avast support will be able to assist you in configuring their product to work.

Read this answer in context 👍 0

All Replies (4)

more options

That sounds like your Anti-Virus could be forcing you to see that message, so click on add exception.

You normally never store a certificate for Gmail in the server tab.

In Account Settings' for the gmail account, click on 'End-To-end Encryption'. 'Manage S/MIME Certificates; opens 'Certificate Manager' click on 'Authorities' tab. You should see 'Google Internet Authority G2' under 'GeoTrust Inc'.

Helpful?

more options

If you are using AVAST: Make sure Avast is up to date. Then try manually adding certificate. You may need to remove the stored one first. https://support.avast.com/en-ww/article/Troubleshoot-invalid-email-certificate

Alternatively: Switch off the Avast mail shield https://support.avast.com/en-ww/article/Antivirus-shield-settings

Or accept as security exception.

Helpful?

more options

Thanks for information. I tried disabling Avast Mail Shield and problem disappeares. I also tried suggested path to export Mail Shield certificate from Avast and import into Thunderbird. This did not fix the issue.

Helpful?

more options

Chosen Solution

I assume Avast support will be able to assist you in configuring their product to work.

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.