They are not hiding and seem to be a big outlet for BMC/BL car parts. Not much in the way of scandal on a quick look at the net.
Then we have had email service issues before, your end, during the Comtesse debate. You were not receiving responses from Stuart, for instance, and you could not get certain attachments to work. It still sounds like a filter issue of server or program protocol protecting you from the naughty elements out there to me. No good asking me how you check or change that, as I would not know.