use MIME::Parser;

split_entity($entity); # $entity is a MIME::Entity object

################################################
sub split_entity {
################################################
  local $entity = shift;
  my $num_parts = $entity->parts; # how many mime parts?

  if ($num_parts) { # we have a multipart mime message

    foreach (1..$num_parts) {

      split_entity( $entity->parts($_ - 1) ); # recursive call
    }

  } else { # we have a single mime message/part

    if ($entity->effective_type =~ /^text\/plain$/) { # text message

      handle_text($entity->bodyhandle->as_string);

    } else { # no text message

      handle_other($entity->bodyhandle->path);

    }
  }
}