I have also learned to only ask 30 seconds worth of questions in a support email.
As an engineer who READS I prefer to get it all done ASAP, with IF A, B, C then do D, Else do F.
But it's MUCH better to just ask one question at a time (especially with presales, where I start with a qualifying question before I go down a rabbit hole.
Also, as someone described once: sales is like dating. You don't' go in for a hug and a kiss when you see someone for the first time. Baby Steps.