When connecting RSS feed to Outlook, I am receiving the message, "Outlook cannot download the RSS Content from (XXX) because you do not have the required credentials."
When clicking Subscribe to this feed in Internet Explorer, users may be prompted several times for their credentials. This results in the error "Internet Explorer cannot display this feed. Internet Explorer does not have the correct user name and password information to access this feed."
We are currently evaluating this issue and will update this article when we learn more.