What are some surefire ways of tanking an email marketing?

[Brajet]

You can tank an email marketing campaign by ignoring your audience. You can send irrelevant content to frustrate subscribers. You can use misleading subject lines to lose trust. You can bombard people with too many emails. You can forget to segment your list for better targeting. You can avoid personalizing emails, making them feel generic. You can skip testing your emails for errors. Broken links or bad formatting will hurt your reputation. You can fail to optimize emails for mobile users. Many people will delete unreadable emails. You can ignore feedback from your audience. These mistakes will ruin your campaign.