We’re always preaching that you should never send an image-only or very image-heavy HTML email. It’s #3 on our top email marketing mistakes we see people make.

But there are always going to be exceptions. You will inevitably come up with an email campaign that’s very image heavy. Perhaps it’s for a big splashy product promotion. Or a big e-coupon. Or some postcard. Whatever.

Mark Brownlow recently posted an interesting theory on how you can increase your chances of that email getting opened, and we wondered if it was possible for our customers to (easily) do this sort of thing in MailChimp…

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