Tag: DNSBL

IP relisted despite no more mail being sent

On June 6, 2009, a client sent a mailing. After it was sent, their (static, only-used-by-them) IP was listed by a particular list that is generated by the creator of a large, well-known anti-spam appliance and seems to be used by default in that appliance. I didn’t notice the issue until I started checking all Read More