For the average Verizon email user, spam is unwanted email that clogs up their inboxes. However, the definition is more nuanced than just unwanted email, and it is essential for an email user to know, so you don’t accidentally create a spammy newsletter.
Spam emails are those communications that fulfill 2 main criteria:
They are unsolicited and are sent in bulk. Other factors include those with malicious intent or ones sent from anonymous addresses.
Recipient opt-out from further communication.