Why is my residential IP blacklisted?
Your IP residential was not really blacklisted because our blacklist code is 127.0.0.2 and it was just flagged as 127.0.0.4, that means “this is a residential IP”. This flag code is used by our customers to feed preventive security mail systems. The DNSBL technology is used only by unauthenticated SMTP transactions, that is not your case for sure. So you should not worry about that because there is no harm to you.