[Opera Mail]Security issue - The server's certificate chain is incomplete..."

[opera-freund]

opera-freund last edited by

Dear Opera Mail Team,".

For decades I have been using the software Opera Browser and also Opera Mail.
I have installed these two programs on my new PC with Windows 11. The browser works perfectly, also there were no problems with the installation of Opera Mail. Since I also used it to manage my subscribed podcast, I really love this older mail program. The problem shows up when opening the app. It displays the message "Security issue - The server's certificate chain is incomplete..." every time. (full info attached)
My email provider is IONOS SE. I use the Windows virus scanner. When using Windows 10 there was no such message. I could not find a solution on Google either.
System details attached.
Thanks in advance, I would be happy to continue using my beloved Opera Mail.
With kind regards
J.Brückner"Liebes Opera Mail Team," übersetzt ins Englische lautet "Dear Opera Mail Team,".

[burnout426]

burnout426 Volunteer last edited by

Opera Mail doesn't support all the modern security and encryption protocols that sites/certs use now, so you're going to get those prompts. You can switch to the "Security" tab in those "prompts", check "Remember" and click "approve" to avoid getting them again. Then, you'll have to test that your pop connection still works though.