######################Configurando o SPF (policyd) no Postfix#########################


#Slackware 10.1
#postfix 2.1.5
#gcc  3.3.2


#Compilando a biblioteca libspf2
#Recomendo  verificar se ha alguma versao dessa biblioteca ou
#similares no sistema, se houver isso pode ocasionar problemas na compilacao
#do policyd.
#Verifique usando o ldconfig

cd /usr/local/src/

wget http://www.libspf2.org/spf/libspf2-1.0.4.tar.gz

tar xvfz libspf2-1.0.4.tar.gz

cd libspf2-1.0.4

(setenv CFLAGS ' -O6 -march=i686 -I/usr/local/include' ; ./configure --prefix=/usr )

make

make install

ldconfig -v | grep spf
libspf2.so.1 -> libspf2.so.1.0.0


#Compilando o policyd

cd /usr/local/src/

wget http://www.libspf2.org/patch/policyd-1.0.1.tar.gz

tar xvfz policyd-1.0.1.tar.gz

cd policyd-1.0.1

(setenv CFLAGS '-O6 -march=i686'; ./configure --prefix=/usr --sbindir=/usr/libexec/postfix)

make

make install



#Postifix

No arquivo main.cf adicione a linha  check_policy_service unix:private/policy-spf, exemplo:

smtpd_recipient_restrictions =
   permit_sasl_authenticated,
   permit_mynetworks,
   reject_unauth_destination,
   ....
   ....
   check_policy_service unix:private/policy-spf,
   ...

No final do arquivo master.cf, atencao na formatacao do arquivo:

policy-spf    unix  -       n       n       -       -       spawn
   user=nobody argv=/usr/libexec/postfix/policyd


#Reinicie o postfix e verifique se ha erros:


postfix stop ; postfix start ; tail -f /var/log/maillog | egrep '(warning|error|fatal|panic|spf|policyd)'