hey Garrett,
I am sorry for the delay of this reply,
We did tried in locally, it seems like if we remove the padding from the email template file, it will messed up another mail client app.
By the way, I've remove some padding from your email template file -> JoomlaFolder/components/com_easyblog/themes/wireframe/emails/html/post.new.php , can you give it a check is it look better now?