I am pretty sure this is from Shaw and not phishing... this is the email:
This is an auto-generated message, please do not respond.
Your mailbox size has reached 907.60MB, which is over 90% of your 1000.00MB quota.
Please delete some messages to avoid exceeding your quota.
Please be advised that it may be necessary to log into webmail.shaw.ca if your email client is not set up to delete messages from the server.
For additional support to help cleanup your mailbox please visit the following
Shaw Communities Website
Thank you for choosing Shaw!
flojaekena thank you for clarifying. It is possible one or two of the emails you have stored and not deleted, has a large file (videos or pictures) attached. This would take up your email quota. I'd check by clicking the size button to see if there is an email with any large files attached and saving it on your computer, then delete the email to update your quota.