Preview text, be it executed through pre-header text, snippets, image alt tags or a combination thereof, are the most often overlooked, untested, yet critical, components in crafting effective email marketing messages. https://www.emailcritic.com/
You’d think that a direct mail and email list brokerage and management company like Macromark would know a thing or two about email rendering, alt tags, text-to-image ratios, or pre-header text. You’d be wrong.