Open-Rate Optimization is the practice of improving the percentage of recipients who open your marketing emails. It’s a crucial first step in email marketing — if people don’t open your emails, they won’t see your message, click through, or convert.
This optimization often involves testing subject lines, preview text, sender names, and timing. Even small tweaks can have a big impact. The goal is to stand out in crowded inboxes and make recipients curious enough to click.
Example:
Instead of a vague subject line like “Monthly Newsletter,” try something more engaging like “You asked, we built it — faster onboarding is here.” Personal, specific subject lines tend to perform better than generic ones.