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I built this kind of check into my ecommerce sites for high-value items. They're disproportionally susceptible to fraud and carding for some reason, and impleme

by zrail 11y ago

I built this kind of check into my ecommerce sites for high-value items. They're disproportionally susceptible to fraud and carding for some reason, and implementing a "no free email provider" check has cut fraud on those items to zero.

mynamesgeneric 11y ago
I work at a financial institution and disposable e-mails are used by fraudsters all of the time. This is certainly better than my current blacklist.
- JupiterMoon 11y ago
  Do you blacklist gmail and hotmail addresses as well? It takes 5 minutes to put a throwaway gmail account together.
mmccaff 11y ago
Yes, this. Processing fraudulent cards can result in a costly sum of chargebacks for the seller, and a fake email address is a very strong indicator that the person is a fraudster. Other services like Maxmind minFraud consider the email address and many other attributes when ranking the likelihood that the order is coming from a fraudster. It doesn't mean that you have to disallow the order from being saved (or whatever), just that you might want to flag it for manual review before processing the CC to capture payment.
JupiterMoon 11y ago
This point is orthogonal to the OP's.
- zrail 11y ago
  OP's point as I understand it is "there is no circumstance where you need this, because you're either providing value or you're shit." My point is that there are legitimate circumstances where you are providing value but in a way that people take advantage of for unrelated fraudulent purposes.
mapt 11y ago
I expect blocking GMail, Hotmail, & Yahoo Mail also cut your conversion rate close to a factor of zero of what it would otherwise be.
- zrail 11y ago
  Nope. The blocking is only active on certain products over $500 that don't make sense for non-companies to buy.
- jks 11y ago
  Here's how that might happen: http://mailinator.blogspot.com/2011/05/how-to-get-gmailcom-banned-not-that-i.html http://mailinator.blogspot.com/2011/05/how-to-get-gmailcom-b...

by zrail 11y ago

mynamesgeneric 11y ago

I work at a financial institution and disposable e-mails are used by fraudsters all of the time. This is certainly better than my current blacklist.

JupiterMoon 11y ago
Do you blacklist gmail and hotmail addresses as well? It takes 5 minutes to put a throwaway gmail account together.

mmccaff 11y ago

Yes, this. Processing fraudulent cards can result in a costly sum of chargebacks for the seller, and a fake email address is a very strong indicator that the person is a fraudster. Other services like Maxmind minFraud consider the email address and many other attributes when ranking the likelihood that the order is coming from a fraudster. It doesn't mean that you have to disallow the order from being saved (or whatever), just that you might want to flag it for manual review before processing the CC to capture payment.

JupiterMoon 11y ago

This point is orthogonal to the OP's.

zrail 11y ago
OP's point as I understand it is "there is no circumstance where you need this, because you're either providing value or you're shit." My point is that there are legitimate circumstances where you are providing value but in a way that people take advantage of for unrelated fraudulent purposes.

mapt 11y ago

I expect blocking GMail, Hotmail, & Yahoo Mail also cut your conversion rate close to a factor of zero of what it would otherwise be.

zrail 11y ago
Nope. The blocking is only active on certain products over $500 that don't make sense for non-companies to buy.
jks 11y ago
Here's how that might happen: http://mailinator.blogspot.com/2011/05/how-to-get-gmailcom-banned-not-that-i.html http://mailinator.blogspot.com/2011/05/how-to-get-gmailcom-b...