http://www.perlmonks.org?node_id=297549


in reply to Mail::Internet question

RTFM: ;-)
body ( BODY )
Returns the body of the message. This is a reference to an array. Each entry in the array represents a single line in the message.

If you don't know what a reference is, check out perlreftut. In short:

$content = join( '',@{$message->body} );

Liz