- unwanted email that is not quite spam
- email you signed up for but don't really want
- email you want to receive but don't want in your inbox
When signing up for a free account on that web site they send you an activation email along with seven other "welcome" messages. Those seven messages are bacon.
邮件由 firstname.lastname@example.org 发出。我们决不会发送垃圾邮件。