Several people with @gnu.org mail addresses have had problems with the fsfeurope.org list,
You reported this earlier, and I replied. Did you receive the email http://mail.fsfeurope.org/pipermail/discussion/2010-February/008619.html ?
I do not remeber, I might have but I cannot find it in my inbox.
But trying to resubscribe I get a message stating that I am already subscribe.
My understanding was that the email didn't ask you to resubscribe, but to confirm your existing subscription. When you log into your mailman settings for the list, there is a checkbox somewhere that says "delivery disabled", and you have to uncheck it.
I got two or three reminders, and one claiming I had been unsubscribed form the list. At which point I tried subscribing, and mailman claimed I was already subscribed.
Concering the reasons of the bounces, I can't give you further details, but I hope our sysadmin will be able to look at this shortly.
Thank you.