Sending attachment with wp_mail breaks forces email to send as plain text

Hi

When sending an email through mandrill using the wpMandrill plugin

$content = ‘<p>An offer has been made on the following vehicle:</p>
<p>’.get_post_meta($_POST[‘offerid’],’vehicle_title’,1).'</p>
<p>User is ‘ . $user->first_name . ‘ ‘ . $user->last_name.'</p>’;
$email=’[email protected]’;
$attachments=array(‘https://domain.com//InspectionForm-Final.pdf&#8217;);

wp_mail(“[email protected]”,”Offer made on domain.com”,$content,”From: $email”,$attachments);

AS soon as attachments is added the email I receive looks like the below

<p>An offer has been made on the following vehicle:</p>
<p>Bentley Flying Spur V8</p>
<p>User is </p>

If I remove the attachments $var i get my normal templated html email.

Any ideas?

Thanks

Matt

https://www.ads-software.com/plugins/wpmandrill/