[lione]

Telus is a phone company. They presumably deal with text/email stuff through their phone services, and they presumably have some sort of interactions with Gmail as a result. This isn't Telus doing it, it's just spammers utilizing the ability for Telus to send emails to customers. From someone else in the thread: "it looks like telus.com has set up SPF records allowing people to send mail as @gmail.com via Telus' servers. That's fine. These messages are being sent with a "[e-mail]" return address (the "envelope from")". Telus is just being maliciously used for something it rightfully offers to customers.