Forum Discussion

Iron Contributor

Jun 07, 2018

Solved

TLS 1.2 Office 365 Mandatory - Couple of thoughts

Rather than going to do the dirty work myself and check, I am wondering if someone already has the answers... When connecting to Office 365.... Does Outlook 2010 on Windows 7 support TLS 1.2 ...

office 365

VasilMichev
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/

VasilMichev

MVP

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/

Mitch King

Iron Contributor

Jun 08, 2018

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."