XenForo Newsletter Design

[Tracy]

Still, use your newsletter system addon or whatnot but with SendGrid it releases the job load from your server outside of the room to handle it all

That's the thing with XF.... the only decent newsletter add-on was from Threadloom... and they dropped it recently like a hot potato to only use it on their site (think it was TAZ?).
Torqued quite a few people off when they did that.
The way that @kensonplays is inquiring about is not really what the email send from the ACP of XenForo was designed for. It can be used for it... but it's somewhat problematic. XF really needs a good newsletter add-on.
I'm personally not a fan of DBTech stuff... so choose not to use anything from them (and no, won't comment on why).