Unsolicited advertising refers to promotional messages sent to individuals without their prior consent. This can include emails, text messages, or direct mail that aim to sell products or services. Often considered intrusive, unsolicited advertising can lead to consumer annoyance and may violate regulations like the CAN-SPAM Act in the United States. Many businesses use unsolicited advertising to reach a broader audience, hoping to generate leads or sales. However, recipients may view these messages as spam, which can damage a company's reputation. Effective marketing strategies typically focus on obtaining permission from potential customers before sending promotional content.