This might duplicate a reply you received from another monk under your sendmail question, but the following works fine for me (taken almost verbatim from the MIME::Lite docs).

#!/usr/bin/perl -w

use strict;
use MIME::Lite;

my $msg = MIME::Lite->new(
             From     =>'keiusui@qmailquestions.com',
             To       =>'keiusui@qmailquestions.com', 
             Subject  =>'Helloooooo, nurse!',
             Data     =>"How's it goin', eh?"
             );

$msg->send || die "It did NOT work!";
[download]

If you use your own e-mail address in the To: and From: fields, does this work for you from the command line?
To get any more help with this I think you are going to have to post some of your own code, and whatever error/behavior you observe.

Update: Since you asked about the #..., I should have mentioned that the portion of the code above that defines $msg is what can be used to define $mime in the example I gave previously. However, as the present example shows, you do not necessarily need to use the Mail::QmailQueue module if your system has an alias from sendmail to qmail-inject or qmail-queue.