It's rather amusing how obvious it is that one of these ever look at their plain-text email, while going to exteme lengths to "style" their email. Also the fact that their "few links" are about 2k chars long each, with CRM tracking whatevers, so one have zero idea what the actual url is.

Keeping chaning your from address is an excelent way to you getting your enire domain spamlisted instead of just the one sender.