l_blob BLOB;
l_id NUMBER;

l_id:=APEX_MAIL.SEND(

p_to => '',
p_from => '',
p_replyto => '',
p_subj => '',
p_body => '');

APEX_MAIL.ADD_ATTACHMENT(
p_mail_id => l_id,
p_attachment => l_blob,
p_filename => '',
p_mime_type => '');


APEX_MAIL.PUSH_QUEUE;