It has been brought to my attention by the anti-spam effort at mxguarddog-dot-com that I have been inadvertently reporting them with the Spamcop system, as they process all incoming mail for many addresses before it hits the recipient mailbox. The spam traces indeed show this, with their xxx-dot-ik2-dot-com headers being processed and accepted. I have modified my server's DNS in an attempt to prevent the lookups in the first place and have suggested they use the Spamcop ISP contact method to address this, but whether they do or not is for them to decide. Alternatively, what is the best way and process for getting them recognised and whitelisted please?
Edit: I have since been informed that they have attempted to contact Spamcop before without success. Is there a way or should I just stop using Spamcop?