How it decidesSix signals, and you can see every one
Each order gets a score out of 100 with the reasons written next to it. You are about to decide whether to send someone goods on trust, so you should be able to see exactly why the number is what it is.
Refused a delivery before
The strongest signal there is, and the only one based on something that actually happened. Mark a refused delivery once and every future order from that phone or email is scored higher.
A phone number that cannot be real
Too short, one digit repeated, or a run of consecutive digits. Nobody can ring the customer about a delivery on a number like that.
Several orders in a few minutes
The same phone or the same address, over and over, faster than a person shops.
A large first order
A big order from someone who has never taken a delivery from you is worth a two-minute phone call first.
An address a courier cannot find
Two words and no number is a place name, not an address.
A throwaway email address
From a service that deletes the mailbox after a few minutes.
A customer who has taken delivery from you before gets points back. Your best customers should not be treated like strangers.