Wireless carriers have been pulling stunts like this over the last several years. For example, T-Mobile blocks all SMS messages with links that have a .xyz TLD.

Wireless carriers have been pulling stunts like this over the last several years. For example, T-Mobile blocks all SMS messages with links that have a .xyz TLD. There's no indication that it was blocked by neither the sender or the receiver. I assume this was done to prevent spam and sketchy websites, but personally speaking I've seen way more sketchy .com sites and more spam coming from gmail accounts.