This could all fit on one line, I think.

bugzilla reports do not go over email from the web interface

WEB in all caps looks super-clunky this decade, but it need not change in this commit unless you want to.

should be "or", not "and" (probably no comma, either)

True, but that would violate our rule of not mixing content and whitespace changes?

Oops, you're right.

We are using the serial comma, right?

I don't think so; the content on the second line is new content, so there is nothing being preserved other than the first half of the line being changed.

Our style mandates the serial comma, but there are only two options here, so no comma is needed.

"to submit"

by using by using?