It looks like we will need to get bugzilla admins to change it, as we don't have direct control of that account.

I note however that it's sending things with multipart... text and html. Is your reader unable to prefer text in this case?

This doesn't seem like that big a deal to me, as users can prefer the text part.

I'm going to close this for now, but if we get a number more requests asking for it, we can revisit it.