I've noticed that the line breaks in emails that I send from Sup look bad on mobile devices (or at least they look terrible on the gmail android app). The problem seems to come from a collision between the hard line-wraps that Vim inserts and the wrapping that the android client uses to display the message (basically the default gmail client doesn't reflow the paragraphs).
Is there something I can do on my end to send emails that other readers (especially those more geared toward html messages) will have an easier time displaying? I was playing around with just setting up vim for soft wrapping, but I don't love that solution (for vim-based reasons).