SMU Ends Support for Older Security Protocols on Web Services

No TSLAs part of our continuing efforts to enhance IT security, SMU OIT will start to deprecate older Transport Layer Security (TLS) 1.0 & 1.1 protocols from several SMU web-based services, including, Webmail, and my.SMU on Thursday, September 26, 2019.

Few users should be impacted, as the TLS 1.0/1.1 protocols have already been disabled by popular service providers for other campus services, including Box@SMU and Microsoft Office 365. However, some users with older versions of browsers, email clients and/or operating systems may be required to upgrade before September 26, 2019, in order to continue accessing these resources. This process will be completed over several weeks, so some services might be available to older web browsers while others will require a browser that supports the newer security protocols. SMU OIT recommends keeping these resources up to date in order to ensure the latest security patches, as this helps protect our users against malware and other malicious exploits.

If you have any questions, please feel free to contact the IT Help Desk at 214.768.HELP (4357) or


Updated 09/24/2019: Clarified that the update will be completed over several weeks. 

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Sander Hickerson

Sander is the assistant director of Windows Infrastructure at SMU. He began working at SMU in 2007 as a Windows administrator. In addition to managing Windows Server operating systems and applications, his team helps support virtualization, voice and messaging infrastructure, and cloud applications including Microsoft 365, Azure, and Box.