Exactly this, no matter how good the service is, If I am going to receive an email without my permission, I am going to mark it as spam and consider it as one.

Exactly this, no matter how good the service is, If I am going to receive an email without my permission, I am going to mark it as spam and consider it as one. Just the other day people were complaining in a slack channel about receiving spam emails from TrapFi.