Forum Discussion
TLS 1.2 Office 365 Mandatory - Couple of thoughts
- Jun 07, 2018
The Exchange team has published guidance on this here: https://blogs.technet.microsoft.com/exchange/2018/01/26/exchange-server-tls-guidance-part-1-getting-ready-for-tls-1-2/
Office applications on Windows 7 require additional (OS) patch for TLS 1.2 as detailed for example here: https://blogs.technet.microsoft.com/schrimsher/2016/07/08/enabling-tls-1-1-and-1-2-in-outlook-on-windows-7/
The Exchange team has published guidance on this here: https://blogs.technet.microsoft.com/exchange/2018/01/26/exchange-server-tls-guidance-part-1-getting-ready-for-tls-1-2/
Office applications on Windows 7 require additional (OS) patch for TLS 1.2 as detailed for example here: https://blogs.technet.microsoft.com/schrimsher/2016/07/08/enabling-tls-1-1-and-1-2-in-outlook-on-windows-7/
- Bastien PerezSep 26, 2018Brass Contributor
Hello,
What is it about:
- The 1.1.614.0 version of Azure AD Connect defaults to TLS 1.2, however the older versions will still work or we have to enable TLS 1.2 (enable on the system if not and by following this doc:https://docs.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-install-prerequisites#enable-tls-12-for-azure-ad-connect) ?
-Applications (others than .NET, for example a Java application on a Linux server) that would use the Microsoft APIs to do actions on Office 365 (assign license, user management, etc.) should they support TLS 1.2 (and also the OS, which is sometimes not at all from Microsoft ..)?
- If all PCs go through a proxy (which is able to TLS 1.2 to Microsoft), do you need to put TLS 1.2 on computers or not?
Thanks
- Mitch KingJun 08, 2018Iron Contributor
Also...
IE 8, 9 & 10 will not connect to Office 365 on Windows 7 at all right? i.e. no remediation or patch possible
- VasilMichevJun 08, 2018MVP
Those products are all out of support now, so I highly doubt we will see any more patches...
- Mitch KingJun 08, 2018Iron Contributor
Thanks Vasil,
i'm just surprised by the below statement considering how many organisations are still on Windows 7 or Exchange 2010 on Server 2008 R2...
https://support.microsoft.com/en-gb/help/4057306/preparing-for-tls-1-2-in-office-365
"Although current analysis of connections to Microsoft Online services shows that most services/endpoints see very little TLS 1.0 and 1.1 usage, we are providing notice of this change so that you can update any affected clients or servers as necessary before support for TLS 1.0 and 1.1 ends. If you are using any on-premises infrastructure for hybrid scenarios or Active Directory Federation Services, make sure that the infrastructure can support both inbound and outbound connections that use TLS 1.2."