Microsoft have recently announced that they will be disabling access to O365 for TLS 1.0 and 1.1 from March 1st 2018.

TLS or Transport Layer Security is a cryptographic or encryption protocol that provides secure communication between users' Web browsers and the destination site, for example, O365 or RM Unify. TLS version 1.2 or later offers improved security and will generally be used automatically by up-to-date browsers. TLS 1.0 and 1.1 are now recognised as supporting weaker levels of security and are, therefore, more vulnerable to interception or hacking.

This will mean that users will no longer be able to access O365 on older, unsupported operating system/browser combinations or on an operating system and browser that has TLS 1.2 disabled. This is most likely to affect Windows 7 client devices, which may not have TLS 1.2 enabled by default.

Further information for customers with CC4 networks will be published in the Support Knowledge Library later this month.

Although access to Microsoft O365 will be disabled using TLS 1.0/1.1 from March 1st, access to the RM Unify Launch Pad will be unaffected at this point. Following the Microsoft change, however, we plan to make similar changes to enforce TLS 1.2 for all access to RM Unify in the next few months.

RM Unify is currently supported on the following combinations of popular browsers and platforms:

  • Microsoft Internet Explorer 10 or later on Windows 7 or later 
  • Microsoft Edge on Windows 10
  • Google Chrome 57 or later on Windows 7 or later, Android & Chrome OS
  • Safari 9 or later on iOS and Mac


Microsoft have recently announced an extension to support for access to O365 for TLS 1.0 and 1.1 until October 31st 2018 in order to give customers more time to prepare for this change.

Our planned changes to enforce TLS 1.2 for all access to RM Unify will also be moved back to later in the year to follow the Microsoft change.

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