I come from e-commerce

[mc will]

Originally Posted by jamesbondd

It has been my experience that a fresh email (specifically if it's @comcast, att, etc) nearly always beats a so-called "aged" email, from the perspective of bypassing fraud-detection mechanisms. You can always increase the credibility of your email's signal by creating social media accounts with that email, being sure to setting only the name and profile picture to public and the rest to private, and enabling search engine linking by email (and allowing a few days for results to cache). A previously utilized "aged" email may have become linked to a different name (even if no suspicious activity was linked to it) in the past and as such may end up being disadvantageous. I don't exactly know why telemarketers prefer using "aged" emails over fresh ones, but I suspect that the reasons concern bypassing spam detection, which are not necessarily relevant to fraud detection.
And regarding the second point, comparisons are made against public and proprietary DBs. And I do agree that the DBs can be inaccurate, but it remains a signal that affects the fraud score. And since you asked, I know with fully certainty Tigerdirect uses it, as well as Sony in the past when they still had an ecommerce division, although many others are also likely using it.

Yeah, Comcast emails are fantastic to use, though I find it easier to buy a few hundred gmails/yahoos in bulk and just be done with it. Haven't had issues passing numerous large transactions, so I wonder how great of a factor it really plays, and whether you could sacrifice something else in exchange for using an email that "passes" so to speak. It'd be interesting to experiment with. Although my setups are never really that complex. Often it's just a phone browser.
The DB checks you mentioned is very interesting. I've never heard of it and I've opened a few payment processor accounts. If it's Experian File One, then it certainly makes sense that places such as TigerDirect would use it. I'm gonna play around with it and see what I can do with them.