Creating emails - adding line spacings in bullet points

Are there any global settings to adjust this? I work for an agency, our portal is older than most of our clients’ and I’ve noticed on those newer portals my UL look fine, but I always have to add inline HTML to our emails or else everything is scrunched up. This is even the case for paragraphs, if I don’t add some padding-bottom or just a blank paragraph, there’s no break.