Snippet of "status" text to add at top of message in mbox format to tell Thunderbird it has not been deleted

The below snippet shows what text to add to the head of a standard mbox formatted message to make sure Thunderbird think that it's not deleted. The key is the status lines in red.

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From - Thu Apr 10 06:05:56 2008
X-Account-Key: account6
X-UIDL: ACJqv9EAAXDaR/0t8wsXrB8ZJMg
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:
X-Apparently-To: XXXX@yahoo.com via 209.191.106.39; Mon, 12 May 2008 06:52:53 -0700
X-Originating-IP: [207.106.133.17]
Authentication-Results: mta423.mail.re4.yahoo.com from=yale.edu; domainkeys=neutral (no sig)
....
Date: Mon, 12 May 2008 09:51:48 -0400
From:
Subject: Re: meeting
To: ....