Two comments:

1) There should be a way to get it in plain text.

2) The HTML edition wasn't readable at all to me, since it used some strange MIME encoding that the web-based email address I use for it could not understand at all.

I hope it will be a little more standard in future so that it works for everyone. (Of course, that would be achieved by offering it in plain text too.)

Oh, as for size, yes, 50k is way too big. I get about 50 emails a day and most web-based email systems are limited to 5MB. If all email was this bloated, my mailbox would fill in 2 days.