I advertised a video camera on Gumtree and within a short time I got a message from someone interested in buying it. He/she asked me to contact them using an email address which I did.
We negotiated the final price and the potential buyer told me it was to be a gift for a person in the US and was going to add $100 to the price for postage. They said I should soon receive an email from PayPal to say that the money had been paid. I checked the PayPal site and there was nothing there.
I contacted the buyer who said to check for the PayPal email in my Spam folder - and yes there were two of them there. I use PayPal a lot and I have never had one of their emails end up in the Spam folder.
One of the emails explained that the funds have been withheld for security reasons - PayPal do not do that. Checking the email address it was obvious that this email was fake.
I reported the buyer to Gumtree.
I want to bring this scam to the attention of the community as it was quite convincing. These people are getting clever.
One thing I should mention is that Gmail gave a really good warning about this being a fake email and they were right.