- Not receiving external mails - Host xxx.mail.protection.outlook.com couldn't be resolved https://testconnectivity.microsoft.com/ 9 comments sysadmin
- Exchange 2016 autodiscover broken after reboot? https://testconnectivity.microsoft.com/ 4 comments sysadmin
- not receiving external emails O365 https://testconnectivity.microsoft.com/ 6 comments sysadmin
- O365, can't receive external emails https://testconnectivity.microsoft.com/ 30 comments sysadmin
- Microsoft's Connectivity Test Website is Down... Again... Still https://testconnectivity.microsoft.com/ 34 comments sysadmin
- Autodiscover redux https://testconnectivity.microsoft.com/ 6 comments sysadmin
- Microsoft Remote Connectivity Analyzer captcha broken? https://testconnectivity.microsoft.com 4 comments sysadmin
- AD authentication/Exchange downtime from Windows updates. https://testconnectivity.microsoft.com/ 7 comments sysadmin
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