To access your TMC email you will need to navigate to outlook.office365.com or from the TMC website, click on Resources and select Email
Please note that in order to log in for the first time you will need your originally assigned password. If you do not have your original password, or have any questions, please call the TMC Helpdesk at 661-362-2876.
UserName=Your current username for IQ.Web, email, and the TMC network
Your password will be the same as your originally assigned Self-Service password. NOTE: Changing your Self-Service password will not change your Office 356 password.
Office 365 Help:
Type support.office.com in your browser to get information on using and setting up Outlook 2013, iPhone/smartphones, POP3/IMAP, how to change your password, forwarding your email and other features of Office 365.