Best file format for html email

[Guest]

I like to send internal newsletters via email that contain graphically rich
images along with copy. Right now I create a single graphic in Freehand with
a combination of photos, type and colored backgrounds/shapes, I export the
document as a jpeg, which is then inserted into the body of my email message.
Unfortunately I'm suffering from some loss of quality, especially where type
sit on top of a color.

Any hints or suggested reading on this topic?

 

[Guest]

Check out the Outlook HTML Stationary feature.