Subject: Returned mail: see transcript for details
From: Mail Delivery Subsystem <[email-masked]>
To: <sender-invite.recipient=[email-masked]>
Date: Mon, 30 Jan 2006 19:15:06 -0800

The original message was received at Mon, 30 Jan 2006 19:15:05 -0800
from localhost [127.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<recipient@#example.net>
    (reason: 550 Host unknown)

   ----- Transcript of session follows -----
550 5.1.2 <recipient@#example.net>... Host unknown (Name server: #toyotapaloalto.com: host not found)

Subject: Invitation for quote: Quote #106199 2006 Toyota Prius (4D Hatchback)
From: [email-masked]
To: recipient@#example.net
Cc: [email-masked]
Date: Mon, 30 Jan 2006 19:15:05 -0800

Plain text here.
Test HTML part here.