SPAM or Phishing emails are those designed to fool users into providing hsi or her username and password to their email account.
Typically these appear to come from someone or somewhere you know but when you open the email the reply to or from address is not associated with that person. This is called spoofing and is the first way to tell if an email is SPAM.
SMU does not send you messages that you need to take action on about your email being audited, changed, deleted, etc. that you would need to click a link to do any type of action on. It is this link and providing your information that the fraudulent thieves are trying to get at. PLEASE do not click any link in an email that prompts you to take action on in a short period of time. These are almost if not always bad emails. JUST DELETE THEM.
Below are a few links to describe SPAM or PHISHing emails.
What you can do to assist in stopping these messages, click the SPAM button on your Google account. Just be careful you do not "SPAM Report" a valid email as you go to delete it. Note buttons are right next to each other.