![The name on the security certificate is invalid or does not match the name of the site" error in Outlook in a dedicated or ITAR Office 365 environment - Microsoft Support The name on the security certificate is invalid or does not match the name of the site" error in Outlook in a dedicated or ITAR Office 365 environment - Microsoft Support](https://support.content.office.net/en-us/media/18adb089-9750-d2e7-3e2c-31f09d6b4aa0.png)
The name on the security certificate is invalid or does not match the name of the site" error in Outlook in a dedicated or ITAR Office 365 environment - Microsoft Support
![Amazon.com: Windows Server 2016 Security, Certificates, and Remote Access Cookbook: Recipe-based guide for security, networking and PKI in Windows Server 2016: 9781789137675: Krause, Jordan Amazon.com: Windows Server 2016 Security, Certificates, and Remote Access Cookbook: Recipe-based guide for security, networking and PKI in Windows Server 2016: 9781789137675: Krause, Jordan](https://m.media-amazon.com/images/I/71Tyk37KgYL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Windows Server 2016 Security, Certificates, and Remote Access Cookbook: Recipe-based guide for security, networking and PKI in Windows Server 2016: 9781789137675: Krause, Jordan
![Outlook - POP - poup The server you are connected to is using a security certificate that cannot be verified. - Microsoft Q&A Outlook - POP - poup The server you are connected to is using a security certificate that cannot be verified. - Microsoft Q&A](https://learn-attachment.microsoft.com/api/attachments/36764-cap1.png?platform=QnA)