my $folder = new Mail::Box::POP3 ... my $message = $folder->message(10);
See SYNOPSIS in Mail::Box::Net::Message
A Mail::Box::POP3::Message
represents one message on a POP3 server,
maintained by a Mail::Box::POP3 folder. Each message is stored as
separate entity on the server, and maybe temporarily in your program
as well.
See DESCRIPTION in Mail::Box::Net::Message