Possible spam on Felix Users List

[Felix Meschberger]

Hi all,

Over on the users(at)felix list we have had (at least) three possible
spam messages with ids:

  aanlktinkgi_xfs1-=sfjo=ori6eitcsdg9sfg+kre...@mail.gmail.com
  aanlktinaje7u3cniutgqusk_kmq=4mbtqo8icck4t...@mail.gmail.com
  aanlktimgzeaw4yft--xvuponb6d7gvm5ssq_hvexg...@mail.gmail.com

Can there be done something on our (Apache) side or where should we go
with this stuff ?

Thanks for any help.

Regards
Felix