Oversized files can cause several issues in email marketing, including:
1. Delivery Failures: Many email service providers (ESPs) have limits on the size of email attachments. Exceeding these limits can result in delivery failures. 2. Slow Loading Times: Large files can significantly slow down the loading time of emails, leading to a poor user experience and higher bounce rates. 3. Storage Issues: Recipients with limited inbox storage may find their boxes filling up quickly, potentially causing them to miss important emails.