Bulk Email is the process of sending one single email message to multiple recipients, usually starting from a few hundreds, up to millions of recipients at once. This is the go-to strategy for companies that purposefully direct market services and goods to their customers. Therefore this is a practice mostly used by businesses that leverage the power of email marketing to get in touch or stay in touch with their customers. Now, there is another side of Bulk Email, and it is a dark one. We are now talking about Spam.