Should I use images in email marketing?
Use images with a visual impact to get attention
Compared to text, visuals have a higher chance of grabbing attention. It's natural for people to first notice a visual, but only if it catches their attention. Then they can read what your email is all about. That's where powerful and relevant images come in.
What size should images be for email marketing?
Length-wise, though, you should first consider the purpose of your image. If used as banners, then they should be between 800-1730 px. Similarly, if you use them as newsletter images, you should go as high as 1200 px.