New research has revealed that email marketers who use email certification generate more profits than those who do not.

According to a Goodmail Systems report, e-marketers who use certification benefit from higher conversion rates and more revenue to their companies' bottom lines.

Speaking to Market Watch, Goodmail's chief executive officer Peter Horan said: "Solutions like CertifiedEmail that improve consumer trust and assure message delivery and rendering help firms recoup the costs of campaign and content development and drive greater profit."

He added that current difficult economic times make it more important than ever for e-marketers to "reap the most out of every dollar they spend".

Email certification enables marketers to ensure delivery to inboxes and the bypassing of spam filters because individual messages are certified.

The study also showed that e-marketers who certify their mail tend to employ more sophisticated tactics, including more images and well-constructed emails.

Meanwhile, an industry expert recently claimed that e-marketing is more eco-friendly than traditional methods.

According to Chris Lake, editor in chief of E-consultancy, printing brochures and indirect mail shots is more wasteful than sending marketing emails, the focus of which, he added, is more measurable.