Neglecting to test can lead to a myriad of problems:
Poor Open Rates: Without testing subject lines, you may never know which one could drive more opens. Low Engagement: If your content isn't tested, it may not resonate with your audience. High Bounce Rates: Neglecting deliverability testing can mean your emails never reach their intended recipients. Spam Issues: Without proper testing, your emails could be flagged as spam, damaging your sender reputation.