Unsubscribing

I wonder if you can help me unsubscribe my late husband, Dave Guthrie, from the Ripe mailing list.
Dave died in March of this year, and in May I sold our shares of Technocom plc to the Easynet Group.  Dave's e-mail address was dave at technocom.co.uk.  Since his death, incoming messages have been routed to me at ruth at technocom.co.uk (until the sale of Technocom) and at the.guthries at worldnet.att.net (since May).  There have also been occasional uses of @technocom.com and @technocom.net, just to confuse the issue further.

If you are able to unsubscribe him, I would appreciate it.  If not, have you any advice about how I would do so?

Many thanks for your help...

Ruth Guthrie