(1) Royal Mail International Tracked and Signed (at basic compensation level) or other reliable courier with ParcelPro compensation. (New accounts are business customers only).
(2) Mailboxes Etc. (send via one of their partner couriers; must send via a MBE shop).
(3) DHL. Check with them first.
(4) www.ifs-inforsure.com. This was founded by Jeroenusa of this very forum (a former employee of ParcelPro). Until recently they had a confusing clause in their Ts&Cs but according to this thread, http://forum.tz-uk.com/showthread.ph...=1#post4415650, they are improving their Ts&Cs.