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University Technology Services

Email and Accounts



MAC ID is a unique, common identifier enabling single sign-on for a number of McMaster systems and applications.

Your MAC ID is not your employee or student number.


UTS provides a central mail and calendaring host running Microsoft Exchange. MacMail, as it is called, is the host machine for faculty, staff, and retirees. It incorporates both email and calendaring for users. MacMail can be accessed via web browser by navigating to MacMail can also be configured on clients such as Microsoft Outlook, Mozilla Thunderbird or AppleMail. Instructions on how to configure these email clients can be found at

McMaster StudentMail powered by Google is for undergraduate and graduate students. This email application is part of a larger suite of programs entitled G-Suite (formerly Google Apps for Education) which includes calendaring, cloud storage and Google Documents.

Please refer to for complete details.

Service Bulletins

  • MAC ID Password Expiry

    Beginning in May 2016, MAC ID passwords at McMaster expire annually. Learn more at

Service Desk

Hours: Monday - Friday
8:30 am - 4:30 pm
Phone: 905-525-9140 x24357 (2HELP)
Location: Main Campus BSB Rm. 245
Service Catalogue:

Great Idea Site

Great Idea