“To whom it may concern, You are using my copyrighted work/image (here he explains which image it is) on your squidoo account without any permeation* or credit. You may still use the image with a credit link back to its original source at http://www.hiswebsite. Otherwise please remove the image from your websites/social channels. Thank you,”
* I guess he meant ‘permission’.
I found this image at Google images in 2009 and I used it in a Squidoo lens at that period of time.
I don't believe that the person who sent me this message today is the real owner of this image.
On the other hand, I saw the image of one of my ebook covers at Google images being exposed as a free image, while I had paid for it in 2008 with the intention to have it exclusively for my ebook cover.
I think that there is nothing you can do about this matter.
I believe that the person who sent me this message is only trying to promote his site by saying that he is the owner of this image and obliging those who are using it to link back to his site.
What do you think about that?
Editing: As a coincidence, exactly when I was writing this message here I received another message from the same person, after answering his message and saying that I don't believe that he is the real owner of this image:
“I will not prove it to you if I am the owner of that image or not. I will simply contact Squidoo and open a DMCA case. I first sent you a friendly email. Looks like it did not help. Next move is taking actions.”