I am not sure where the email came from, but I am not recieving emails they send. the message they received says "188.8.131.52 is in a blacklist at spam.dnsbl.sorbs.net. " that is the IP of thier ISP (Pipex in the UK) and that it is blacklisted.
So they have tried to send me an email, and has been rejected due to being listed on sorbs. So I assume it is LP doing the rejecting?