Hi David, I've just done a search for that customs email address and it takes you to a Royal Mail site, which does come up with the Royal Mail address in the bottom left hand corner when you hover over the links, it has a box for you to enter a reference number, which can be found on your "Fee to Pay" card or if you received one, your SMS/email notification, but it doesn't seem to be directly connected to the Post Office, it is however linked to customs payments and the list of payments are given in GBP not Euros. So the actual email address may be a scam and why, as has been said, would the Royal Mail be concerned with a commercial courier. Like Oldiron says, try contacting DPD and it might be worthwhile contacting Royal Mail also to enquire if they would be connected to such payments. Don't totally ignore it, but check it out before clicking any links. My Norton security didn't flag up any security risks by searching that email address as you have written it.
Regards Nick.
P.S. passage card pin code number, has a connection to door locks, digital ones I presume.
Edited By Nicholas Farr on 22/09/2020 11:20:38