First I’ve heard of this. What was CIBCs excuse?
This is all they said: Sorry for the inconvenience. To keep your account secure, we’re no longer sending one-time verification codes to this email provider. Please return to your list of contact methods, choose SMS or Telephone, and select “Resend”. Error #F0001
Found this statement on cibc website
Note: For account security, we’re no longer sending one-time verification codes to personal or free email services.
I guess they now consider telus email to be free.