I have an odd issue and I am not sure if its webmail, IIS or a certificate error.
When I login to webmail, by browser is showing that the site certificate is valid and all secure.
If I go between emails and folders, it randomly changes to a warning sign on the browser saying "Not Secure" and when I click the icon it says "Your connection to this site is not fully secure".
Yes, if I click in to the actual certificate, it says its valid and correct for the site.
I have tried this on both Chrome and Edge with the same issues.
What should I be looking at ?