Ah, when spam software doesn't parse the templates correctly...
From: "Glenn" <shaelyn_robison@gamebox.net>
To: <XXXXXXXXXXXXXXXXX>
Subject: STR_RNDLEN(2-4)}{EXTRA_TIME_4} {WORD}
Date: {DATE}
MIME-Version: 1.0
X-Mailer: Microsoft Office Outlook, Build 11.0.5510
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
Thread-Index: {ALNUM[36-36]}
Content-type: multipart/related;
boundary="{_BOUNDARY_RELATED}"[-- Attachment #1 --]
[-- Type: text/html, Encoding: 7bit, Size: 0.1K --][-- text/html is unsupported (use 'v' to view this part) --]
[-- Attachment #2: {LC_CHAR[7-7]}.jpg --]
[-- Type: image/jpg, Encoding: base64, Size: 0.1K --][-- image/jpg is unsupported (use 'v' to view this part) --]
The HTML was simply "{BODYHTML}", and the attached JPEG was blank. Somebody forgot to use "preview" before sending. And I was really looking forward to that 2-4 character random string with the long date format appended :(
Ironically, because the message was so badly formed, it managed to sneak through my hardened spam filters.