- They are not responsive at all.
- They are likely to break in all sorts of email clients and you cannot test for this.
- They still need to follow data laws and I can guarantee you none of the clients do this as they think it's 'one to one'. Like sending a private email. It's not. It's marketing 99% of the time and therefore needs to adhere to the relevant data law in the country.
- Build oldschool and don't bother with any form of fluid or responsive layout choices.
- Images over background images don't work
- It will still break somewhere :)
That's a fair point, but I find the litmus tests inconsistent with the real world results in regards to OFT's. But I suppose its the best we can do with what we have.
OFT's are the devil. Have used them begrudgingly for 2 years now. They have their place with simple text based layouts and can work for more complex ones, but there are so many caveats to that.
Things to not development wise:
Everything you have around the images is asking to center them. You have them in center tags with text-align:center to start with.
Also the png image has white space on the left of it so it wont completely go left.