Has anybody used an HTML compressor with their code? I have a rather lengthy responsive newsletter with a lot of pictures. I've run an image compression on the photos to decrease the file size (https://tinypng.com/), but with all the sections that my client wants, the email is coming in at 123KB, which is quite a bit higher than the 102KB recommended size.

I'm still hoping to optimize content in order to get under the 100KB recommended send size, but does anybody know how a HTML or CSS compressor works? Is something like this worth using?

An example: https://htmlcompressor.com/compressor/