Many magazine, literary agents, publishers, etc., are accepting e-mail query letters. E-queries use a different format than the standard query letter sent through the postal mail. And, if you’re like me (unpublished but taken steps to rectify that deficiency) you don’t know what a query should look like.
I found an article at Associated Content that should help.It covers salutations, contact information, subject headings, attachments, and length. As always, be sure to do your homework and learn what the place your querying prefers.
Here’s a post , 16 Tips for Writing An Email Query by Anne Waymon.