Spam email is unwanted or unsolicited email, typically sent in bulk, that aims to promote a product, service, or scam.

Spam email marketing refers to the practice of sending unsolicited commercial emails, often in large quantities, to promote a product, service or scheme. This type of marketing is considered unethical and is illegal in many countries due to its intrusive and annoying nature. Recipients of spam emails did not ask for them and do not want them, so it can negatively impact the reputation of the sender and their brand. Effective email marketing is based on building relationships with subscribers who have opted-in to receive emails from a sender, rather than sending unsolicited messages to a large list of recipients.