bdsmail file permissions

src/freedombone-app-bdsmail

     echo "    to_username=\$(echo \"\$to_line\" | awk -F ' ' '{print \$2}' | awk -F '@' '{print \$1}')" >> /usr/bin/bdsmail_distribute
     echo '    if [ -d /home/$to_username/Maildir/i2p/new ]; then' >> /usr/bin/bdsmail_distribute
     echo '        chown $to_username:$to_username $filename' >> /usr/bin/bdsmail_distribute
+    echo '        chmod 600 $filename' >> /usr/bin/bdsmail_distribute
     echo '        mv $filename /home/$to_username/Maildir/i2p/new' >> /usr/bin/bdsmail_distribute
     echo '    fi' >> /usr/bin/bdsmail_distribute
     echo 'done' >> /usr/bin/bdsmail_distribute