As a postgraduate student, you can request a University of Otago "postgrad" email address. A postgrad email address is usually of the form knownname.surname@postgrad.otago.ac.nz
Postgraduate email addresses are an "alias" to your student email address. Although your email address looks different, you still log in to StudentMail using your usual student username and password to check and send your email. Neither your student username or password will change. However you will only be able to send or reply using your postgraduate address, not your old student email address.
You are not required to have a postgraduate email address; you can keep using your student one if you wish.
Your access to most student IT services should be unaffected when you start using a postgraduate email address because your student username remains the same. Continue to use your student username to log in as you usually do.
Microsoft 365
You can still install the University-provided Microsoft 365 software on your computer but use your @student email address (not your new @postgrad email address) to authenticate e.g. bonja007@student.otago.ac.nz
If you have any questions about using your postgraduate email address, contact AskOtago