7 Reasons to test every email before pushing the send button By EmailGarage on 12 December 2014 in Email Marketing, Personalization, Rendering, Tips, Copywriting, Mobile Every email deserves to be tested. Even if you’ve just tested that template you’re using yesterday. Email programs and apps are not only capable of breaking your design, but also links, subject lines, images, … the whole lot.Each and every time your finger hovers over the send button, you should check (and double check!) for these 11 critical mistakes. Neglecting them could significantly affect your opens, clicks, conversions, and most importantly—your brand.