[Mailman-Users] Undeliverable Mail

[Nik Engel]

Hi ! 
I made an error when I subscribed one user and used a wrong tld.
Unfortunatly this mail is put into my mailsystem again and again since
days. Always with the same result; unknown domain... 
I am using postfix and the debian installtion of mailman: 

mailman:
  Installed: 2.0.11-1woody5
  Candidate: 2.0.11-1woody5
  Version Table:
 *** 2.0.11-1woody5 0
        500 http://ftp.de.debian.org stable/main Packages
        100 /var/lib/dpkg/status
     2.0.11-1woody4 0
        500 http://security.debian.org stable/updates/main Packages

postfix: 

postfix:
  Installed: 2.0.16-3.backports.org.1
  Candidate: 2.0.16-3.backports.org.1
  Version Table:
 *** 2.0.16-3.backports.org.1 0
        500 http://www.backports.org stable/postfix Packages
        100 /var/lib/dpkg/status
     1.1.11-0.woody3 0
        500 http://security.debian.org stable/updates/main Packages
        500 http://ftp.de.debian.org stable/main Packages

Any ideas how I can delete or stop this ? the mail is not stuck in the
mailq; that means it is coming from mailman again and again; is there a
queue too ? 

nik