“This is Spam” button can be empowering for a user or potential spam victim. But it can also be the kiss of death for a legitimate business that gets falsely labeled as a spammer. Expert: “When a legitimate company is accused of spamming something, a lot of the time they’ve done something stupid” Dark Reading has compiled a list of seven common “stupid” missteps that can lead to your company’s email being mislabeled as spam. To avoid getting labeled, the key is to provide the option to receive a new newsletter or mailing, rather than sign up.”]
Source: https://www.darkreading.com/analytics/seven-ways-to-be-mistaken-for-a-spammer