Chances are, most of your subscribers are bombarded with emails on a daily basis. In the battle for consumers’ limited attention, you need to optimize your subject lines to increase the odds that your emails get opened.

Aim to keep your subject lines short and sweet. A maximum of 50 characters with spaces is often recommended. However, Mailchimp suggests to look up the top email clients for your audience and A/B test subject lines of different lengths. Personalizing your subject lines with each recipient’s name or location can also have a big impact on open rates. Studies have found that personalizing email subject lines can increase open rates by 50%.