I have been submitting spam to SpamCop for years. The last few days have really shocked me. Normally in a month I may see an error message from the SpamCop server that states no header information was found, this might happen perhaps 1 or 2 times [per month]. A week ago without warning I started receiving hundreds of spam messages on 4 different email accounts that I own, Hotmail, Outlook and Comcast. I dutifully reported all of the messages that came into my Thunderbird email client [right click - Forward as Attachment]. Starting 3 days ago at least 98% of the 100’s of messages I submitted return with this "no header" error. Thinking that maybe I had reached a SpamCop ceiling I used mxtoolbox to check the headers… These messages do NOT have an originating IPAddress.
My question is simply this. Has anyone else noticed the same problem? If spammers have devised a way to send spam without headers what good would it do to continue to use SpamCop in the future? How can the Block list continue to be useful?