Erro na instalação do qmail

Estou instalando o qmail, e na hora de criar os certificados aparece a seguinte mensagem de erro:

root@localhost:/usr/src/qmail/qmail-1.03# make cert
openssl req -new -x509 -nodes \
-out /var/qmail/control/servercert.pem -days 366 \
-keyout /var/qmail/control/servercert.pem
Generating a 1024 bit RSA private key
..............++++++
.........++++++
writing new private key to '/var/qmail/control/servercert.pem'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:BR
State or Province Name (full name) [Some-State]:SP
Locality Name (eg, city) []:são paulo
Organization Name (eg, company) [Internet Widgits Pty Ltd]:sapo.com.br
Organizational Unit Name (eg, section) []:mail
Common Name (eg, YOUR name) []:mail.sapo.com.br
Email Address []:[email protected]
chmod 640 /var/qmail/control/servercert.pem
chown qmaild.qmail /var/qmail/control/servercert.pem
ln -s /var/qmail/control/servercert.pem /var/qmail/control/clientcert.pem
ln: `/var/qmail/control/clientcert.pem': File exists
make: *** [cert] Error 1

ja tentei trocar o endereço, o dominio e tudu mais... mas nu mfoi =(