This extensive list of hacks and case studies from 99firms highlights the importance of email marketing.

According to the company, although there are many marketing channels at your disposal, email is arguably the most powerful strategy for both B2B and B2C advertisers. This cost-effective solution enables business owners to reach potential customers in the place they visit every day—their inbox.

However, it’s not enough to just occasionally send emails. Potential customers receive dozens of emails every day but open only a small percentage and engage with even fewer.

Optimizing your email marketing campaign helps you get the most out of it. The team behind 99firms created an infographic to provide efficient hacks, supported by case studies.

Access the complete list of email marketing optimization hacks and case studies.