This means that the sender includes a list-unsubscribe header, which is supported by a lot of email clients. Not sure if StubHub does this, but it’s worth checking.
Most providers that adhere to the CAN-SPAM act should have a List-Unsubscribe header since they generally allow unsubscribing either by clicking a link or by sending an email.
Recently Gmail has had a big pretty unsubscribe button at the top of all my emails like this.
This means that the sender includes a list-unsubscribe header, which is supported by a lot of email clients. Not sure if StubHub does this, but it’s worth checking.
Most providers that adhere to the CAN-SPAM act should have a List-Unsubscribe header since they generally allow unsubscribing either by clicking a link or by sending an email.