Forum Discussion
Same issue. Exchange 2013, Load-balanced servers via Netscaler. Noticed after upgrading clients to 2016. Ticket open with MS support but their only solution is to disable the "Check for Publisher's Certificate Revocation" in IE which is not a real solution.
- Paul CunninghamMay 23, 2017Steel Contributor
If you're having certificate warnings in Outlook for an on-prem Exchange deployment you should post a screenshot here so we can see exactly what the warning says. There's a number of potential problems and solutions for certificate issues.
- Amir JafarianMay 23, 2017Copper Contributor
Here is the error message (Office 365):
- Paul CunninghamMay 24, 2017Steel Contributor
Amir Jafarian that looks like either a problem communicating with the CRL or there might be another issue with your system or an intermediate network device (like a proxy). Since you are connecting to Exchange Online you can raise a support ticket with Microsoft for troubleshooting assistance. You can also try running diagnostics with the SARA tool (https://diagnostics.outlook.com).
Other posters are complaining of certificate popups for on-premises Exchange server environments, which could be an entirely different problem with their server or certificate configuration.
- Javier GarciaMay 25, 2017Copper Contributor[REG:117051515740234]
- HapJun 07, 2017Brass Contributor
Thanks. I created a case as well and referenced yours.
Found out something interesting. Everytime the revoked message appears, I have 2 Lync event in my application eventlog at exactly that timestamp:
Lync has enabled event logging.
Information about failed calls will be sent to the Windows event log.and
LyncPlatform has enabled event logging.
Information about failed calls will be sent to the Windows event log.Other than this, it seems totally random. Can stay away for weeks, then popup daily.
- MichaeL3_6Jan 11, 2019Copper Contributor
I keep getting the message outlook. Office365.Com has had its security certificate revoked. Is this true? What action should I take?
- MichaeL3_6Jan 11, 2019Copper Contributor
Just to add to my previous message I have now viewed the certificate and clicked on the tab titled Certification Path. This says: this certificate is okay.
Does that mean there is actually no problem and this is just a glitch?- SerggJul 16, 2021Iron ContributorJuly 2021 - We got this across few personal and work computers few minutes ago. Various locations, same business.