Forum Discussion
Alex Melching
Dec 13, 2017Iron Contributor
Outlook 2016 error 0xCAA70004
Some users report this error message in Outlook 2016. Unable to determine the root cause of the message. Information on the error code is next to none. Any thoughts...?
Michael Hendricks
Apr 13, 2018Copper Contributor
The diagnostic tool worked for me, thanks! I have seen this issue with a number of our users (random and unexplained) however the external DNS does not appear to be our problem. Our helpdesk technician usually ends up reinstalling Office and that solves it. But when it happened to my own computer, the reinstall only lasted a few days then the popup returned. I downloaded the tool and it resolved it within minutes. I hope the fix stays this time! Thanks for the post Jett.
Timo Riemer
Oct 31, 2018Copper Contributor
Which steps did you take in the tool? I could not resolve the problem with the tool yet.
THX
Timo
- retzolitoJul 04, 2019Copper Contributor
Timo Riemer hi guys, "CMD" and "ipconfig /flushdns" that work fine for me ^^
- Alex MelchingOct 31, 2018Iron Contributor
Refer to this article as well for Symptom 4.
- simonsouthMar 30, 2019Copper Contributor
Alex MelchingThanks for linking that article; it gave me the clue I needed to solve this problem.
Configuring Windows 10 to access the Internet through a local proxy server (such as Privoxy) creates issues for Universal Windows Platform apps, which by default are forbidden from opening a network connection to the local machine. This includes the Azure Active Directory (AAD) broker plugin used by Office applications to perform authentication, which is effectively blocked from accessing the Internet when a local proxy is in use.
The solution in this scenario is to use a tool like Tiago Andrade e Silva's Loopback Exemption Manager to explicitly grant permission for this plugin to access the local machine, thereby allowing it to connect to the proxy server and, through it, the Internet. Once I added an exemption for the AAD-broker plugins on my computer I was able to sign into my Office account again and use Outlook without the "0xCAA70007" error code reappearing.
- retzolitoJul 04, 2019Copper Contributor
hi guys, "CMD" and "ipconfig /flushdns" that work fine for me ^^simonsouth