I'd do it like this: 
#!/usr/bin/perl

use strict;
use warnings;
use MIME::Lite::TT::HTML; 

my %params;
$params{firstname} = 'MyFirstName';
$params{lastname}  = 'MyLastName';

my %options;
$options{INCLUDE_PATH} = '/path/to/template';

my $msg = MIME::Lite::TT::HTML->new(
          From      => 'email@domain.com',
          To        => 'otheremail@otherdomain.com',
          Subject   => 'Test 1',
          Timezone  => 'UTC',
          Type      => 'multipart/related',
          Encoding  => 'base64',
          Template  => {
               html =>  'template.html',
          },
          Charset     => 'utf8',
          TmplOptions => \%options,
          TmplParams  => \%params,
);
$msg->attach(
    Type => 'text/html',
    Data => qq{
        <body>
            Here is <i>my</i> image:
            <img src="cid:image.png">
        </body>
    },
);
$msg->attach(
    Type => 'image/png',
    Path => '/path/to/image/image.png',
    Id   => 'img1',
);
$msg->send(
    'smtp', 
    'smtp.somedomain.com', 
    Debug => 1, 
    Timeout => 60,
);

[download]

In reply to Re: How do I send ONLY HTML mail using MIME::Lite::TT::HTML by Khen1950fx
in thread How do I send ONLY HTML mail using MIME::Lite::TT::HTML by trebor

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


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