Social Engineer Toolkit Mass E-Mailer
   There are two options on the mass e-mailer, the first would
   be to send an email to one individual person. The second option
   will allow you to import a list and send it to as many people as
   you want within that list.
   What do you want to do:
    1.  E-Mail Attack Single Email Address
    2.  E-Mail Attack Mass Mailer
    3.  E-Mail Attack Single Email Address (with attach)
    4.  E-Mail Attack Mass Mailer (with attack