[bitfolk] SpamCop

Hi all, If you are running your own email server and you are using SpamCop (spamcop[.]net) somewhere in your spam filtering set-up, this is important. The service has had its DNS registration lapse and now points to a domain parking service. More importantly, any lookup against the SpamCop blocklist will return a positive response, which spam filters take to mean the domain is listed. While it would not be difficult for a DNSBL client to distinguish between these responses and proper DNSBL responses (which usually are in 127.0.0.0/8), but in practice most don't. So if you are using SpamCop, it is strongly advised you remove it from your DNSBL client until the domain starts working again. Martijn