Add a Background Image to Your HubSpot Email Template (Custom Module)
This one seems to come up a lot (I've had plenty of client requests and see a few posts on the community) and has caused me endless hours of banging my head against the wall so I thought I'd share how I've been doing it.
I found that Campaign Monitor's "Bulletproof Background Images" works but that I still need to force a fixed height () on Outlook anyway. I created a step-by-step tutorial here on how to create something like this:
When testing across clients it seems to work on most of them (yep, even Outlook). You'll probably still want to do some tweaking to padding, widths (my logo's a bit large on mobile on the above, for example, and a 600px image should help with displaying more of the background on Gmail), etc. but it should mostly work.