Invalid Queue Files with Postfix

[Brad Beckenhauer]

I'm running a Postfix system using the Hold method and recently
experienced a huge backlog due to "invalid queue files".  Eventually the
hold directory got enough invalid queue files that MailScanner switch to
"accelerated" mode of processing messages.

sample from the maillog:
Aug 17 08:37:48 mx2 MailScanner[26605]: New Batch: Found invalid queue
files: B1FB93EE101
Postcat of this file is below.

Finding what's causing these invalid queue files and eliminating them
is the first issue. 

Would a feature in MailScanner that takes action when invalid queue
files are found be useful to others?
Such a feature could:
Detect invalid queue files (which it already does) and 
a) Move the invalid queue file somewhere safe and notify the admin
b) postsuper -d queue_file to get rid of it.

Or how about a courtesy email to the email admin when MailScanner
switches to "accelerated mode".

postcat B1FB93EE101

*** ENVELOPE RECORDS B1FB93EE101 ***
message_size:             489             336               1          
    0
message_arrival_time: Thu Aug 16 09:22:55 2007
sender: Lucien.Hatch8400 at hot.ee 
named_attribute: client_name=62.43.179.119.dyn.user.ono.com
named_attribute: client_address=62.43.179.119
named_attribute:
message_origin=62.43.179.119.dyn.user.ono.com[62.43.179.119]
named_attribute: helo_name=62.43.179.119.dyn.user.ono.com
named_attribute: protocol_name=SMTP
original_recipient: tnolte at stfm.org 
recipient: tnolte at stfm.org 
*** MESSAGE CONTENTS B1FB93EE101 ***
Received: from 62.43.179.119.dyn.user.ono.com
(62.43.179.119.dyn.user.ono.com [62.43.179.119])
        by mx1.aafp.org (Postfix) with SMTP id B1FB93EE101
        for <tnolte at stfm.org>; Thu, 16 Aug 2007 09:22:55 -0500 (CDT)
Received: from martinique.hotbox.com (unknown [111.13.212.156])
           by galleryplanet.com with SMTP id 5[10
Message-Id: <20070816142255.B1FB93EE101 at mx1.aafp.org>
Date: Thu, 16 Aug 2007 09:22:55 -0500 (CDT)
From: Lucien.Hatch8400 at hot.ee 
To: undisclosed-recipients:;
*** HEADER EXTRACTED B1FB93EE101 ***
*** MESSAGE FILE END B1FB93EE101 ***