Thunderbird says my email servers are not trusted
Thunderbird has suddenly started claiming that certificates for three servers that I use are not trusted:
pop.googlemail.com:995 pop.gmail.com:995 pop.zoho.com:995
saying that they are attempting to identify themselves with invalid information and the certificates haven't been verified as issued by a trusted authority using a secure signature. I've been using all three for many years.
Why is it doing this? What should I do?
Tất cả các câu trả lời (4)
Who is the issuer of the certs Thunderbird is complaining about? Inspect the certs and check the 'Issued by' field.
What is your anti-virus software?
For pop.googlemail.com (and I expect the others) it's Avast Web/Mail Shield (my anti-virus software), with a period of validity from Nov. 8 '17 to Jan 31 '18. The certificate viewer says "Could not verify this certificate because the issuer is unknown."
Thanks - that was the problem!