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TLS 1.1 – End of Support FAQs

What is TLS?

TLS stands for "Transport Layer Security." It is a protocol that provides privacy and data integrity between two communicating applications. It is the most widely deployed security protocol used today and is used for web browsers and other applications that require data to be securely exchanged over a network. TLS ensures that a connection to a remote endpoint is the intended endpoint through encryption and endpoint identity verification. The versions of TLS to date are TLS 1.0, 1.1, 1.2 and 1.3.


What is changing and why?

Northwestel is committed to maintaining the highest security standards in our solutions to ensure that customers have access to the latest security protocols.

TLS 1.1 and below are now considered obsolete and put organizations at an increased security risk.

The TLS encryption protocol upgrade is a mandatory, industry-wide security update, affecting a wide range of software solutions, not just the Northwestel webmail solution.


How does this impact me?

Northwestel requires customers to upgrade to versions of their products that support TLS 1.2 or above.


What will happen if I don’t upgrade?

If you do not make the required updates, you may not be able to access your email.

See examples of connectivity issues email users will experience if they do not upgrade their Mail Client, OS and browser to support TLS 1.2:


What action do I need to take?

  1. Ensure that you have upgraded to a TLS 1.2 compatible Operating System
    See a list of operating systems that support TLS 1.2
  1. Ensure that your browsers have been upgraded to support TLS 1.2.
    See browser versions that support TLS 1.2
  1. Ensure that your mail client supports TLS 1.2
    See Email clients that support TLS 1.2


Northwestel Email Resources

We’re here to help! In our email support section, you can find additional information to support you in taking the necessary steps to configure your mail securely. If you have completed the steps outlined above and you are still unable to access your mail, please contact us at 1 888 423 2333 to receive a support ticket.