Several factors can contribute to negative backlash in email marketing:
Irrelevant Content: Sending emails that do not align with the recipient's interests can lead to dissatisfaction. Frequency: Bombarding recipients with too many emails can be overwhelming and lead to unsubscribes. Poor Timing: Sending emails at inconvenient times can irritate recipients. Clickbait Subject Lines: Misleading subject lines can create distrust. Technical Issues: Emails that are not mobile-friendly or contain broken links can frustrate recipients.