Yes, you can. Basically build your entities exactly as you'd expect, and use the 'add_part' method to attach one entity as a part of another multipart entity. 
$inner = new MIME::Entity ( ... );
$outer = new MIME::Entity ( ... );

$outer->add_part($inner);

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In reply to Re: MIME Email Generation by Fastolfe
in thread MIME Email Generation by darkomen

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