🚀 go-pugleaf

I have been given a mail address from someone on the US West Coast which is:

PSI%3110415004528::SCMARS::STEW

My problem is - how do I, from the UK, send mail to this address? The numeric
bit seems to indicate an address in Telenet (though it might be Tymnet - I don't
have my crib sheet with me), and the double colons seem to imply some sort of
local DECnet. However, where do I find a gateway that's going to forward any messages
for me? After all, {Tele,Tym}net is not a charitable organisation, and presumably
charges would be incurred by any forwarder. I have no problem about paying them,
but the volume of traffic that we would wish to send over this link would be sufficiently
low that the administrative costs involved in the transatlantic collection of fees
would undoubtedly be an order of magnitude (at least) greater than the usage charge.

If anyone out there can advise me, I would be most grateful. I should also mention
that the requirement to send any mail is not pressing. Please mail me with any
suggestions, as there seems no point in cluttering up the newsgroup with this sort
of stuff.

Regards,
Rick Blake