User-agent: Mediapartners-Google*
Disallow:

User-agent: *# directed to all robots
Disallow: /backoffice/
Disallow: /css/
Disallow: /images/
Disallow: /inc/
Disallow: /mail/

User-agent: Googlebot
Disallow: /*.jpg$

User-agent: PhpDig
Disallow: /

User-agent: Nutch
Disallow: /

User-agent: psbot
Disallow: /