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I just installed Outlook v15.9 as well as updates for the entire new Mac 2016 suite released yesterday. I'm getting an Outlook certificate error as can be seen in the attached screen shot. I can click Continue and run Outlook without any problems and it works fine. Also, I wasn't getting this error in the immediate prior release. All of my company's email is hosted on Office 365. How can I fix this or should I worry about it? Thx! John
Using older versions of Outlook for Mac in business environments
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I may have spoke too soon. This build runs the CPU at > 100% on a 2014 MBP Retina, but runs fine on a late 2013 Mac Pro 3.5 GHz Mac Pro (6-core) with 32 GB of RAM.
On the MBP if I run OneDrive for Business preview at the same time, the fan kicks into overdrive.
Same here.
I still get it on my 15.10 install unfortunately.
I am now up and running again with 15.10. I am no longer getting a cert error, and outlook hasn't crashed in over 4 hours with constant use.
This appears to be a stable build so far!
Same here - also still experiencing this error message in the latest 15.10 version. I wonder if it will be fixed by GA? Perhaps there's a configuration change which needs to made on our end - I'm wondering if there's something unique about our configuration which is only causing this error message in a minority of installations? I can't imagine Microsoft being so quiet on the issue otherwise.