Hi, If there's any of you who are actively using an IPv6 /56 that we've routed to you, and you don't overly mind rebooting your VM to test something (maybe a couple of times) could you get in touch off-list please? Our records say there's only 19 of you so it's a bit of a long shot. I'd rather not try this with someone who doesn't normally make use of a /56 as you may not immediately spot the difference between working and not. Also I've already tested as many setups as I can think of so I'd only be suggesting things I already tested! I can add a little bit of free service for the inconvenience. (Trying to set reply-to on this but Mailman will probably override it so be careful not to reply on-list if that wasn't your intention.) Thanks! Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting