User-agent: ia_archiver
Disallow: /
User-agent: zeus
Disallow: /
User-agent: crescent
Disallow: /
User-agent: emailsiphon
Disallow: /
User-agent: extractorpro
Disallow: /
User-agent: emailcollector
Disallow: /
User-agent: emailwolf
Disallow: /
User-agent: nicerspro
Disallow: /
User-agent: *
Disallow: