HilmarPGP: My public keys can be found on some key servers of this world, e.g. on blackhole. If you find my key 0xA4661171 having a subkey 0x4443BCF3, please report that. The key 0xA4661171 is of an old RSA version, which can't have a subkey. The subkey should not be available any more from a non-broken key server. I recommend to use my new key (0x6FF12C30).
1 read: if anybody sends me a little bit time