We have discovered an issue with our newly released Gmail unsubscribe option (located at the top of email messages). At this time, recipients who click on that option will NOT be unsubscribed. Users can still unsubscribe by utilizing the link located in the bottom of the email.
We understand the importance of allowing your recipients the choice in communications it receives from you. Our team is working on a fix that we will be deploying in the near future, and we will update this bulletin when that fix has been deployed.