It should come as no surprise by now that if you’re designing emails with a mobile-first ethos and aesthetic, then you’re already late to the game. Nearly 56% of emails are now opened via a mobile device, which means we’ve been living in a mobile-first world for quite some time. The overhead associated with managing templates across devices, domains and brands could be onerous but thanks to responsive email design techniques, brands have numerous options for controlling the look and feel of their emails and minimizing the associated work to create a uniform brand experience across platforms and devices. This may all seem like old hat, but it’s worth reviewing how mobile has changed email and how it will continue to define our inbox experience moving forward.
Keep it small
Remember this number: 102. If your email is more than 102KB in size, then Gmail will clip your message when it arrives and asks the recipient to “download” the rest of it. Why are long emails a problem? Most people put their tracking pixel at the bottom of a message. If the whole message isn’t rendered, then you won’t register an open. Recipients are fickle and may deem a message that isn’t fully rendered from top to bottom as broken and simply delete or mark the email as spam. Mobile is all about portability and speed – messages that lack these two qualities (e.g., requiring the recipient to take an extra step) will be seen as flawed. Thus, keep your
Read more here: https://marketingland.com/heres-why-you-need-to-make-sure-your-email-design-is-mobile-first-260088