OK. Log says:
Mail::Sendmail v. 0.79 - Wed Feb  1 10:54:08 2012
Date: Wed, 1 Feb 2012 10:54:08 +0100
Server: *******.de Port: 25
From: me@here.com
Subject:
To: Vorname-Nachname@*******.de

Result: 250 2.0.0 Ok: queued as 476BB1C8A7E0