#71 smtpmail.p v5.7a w/ attachments appears to be broken header

[Stephanie Seney]

According to our Imail 8.2 email server (Windows
based), an HTML message with a file attachement
appears to be creating a broken or maleformed header.

The following is a sample of the header that Imail
thinks is malformed:
...
Subject: X-IMail-SPAM-Broken-MIME-Header LAB STORE
Nightly Backup File Errors For 05/20/05
Importance: 0
Date: 20 May 2005 12:02:51 EDT
MIME-Version: 1.0
Content-type: multipart/mixed;
boundary="MAIL_BOUNDARY"
Content-Transfer-Encoding: 7bit
Message-Id: <200505201200187.SM03168@dsdstr3>
X-IMAIL-SPAM-BROKEN-MIME-HEADER: (09a743e600001bf2)
X-RCPT-TO: xxxxxxx@xxxxx.com
Status: U
X-UIDL: 316249840
X-IMail-ThreadID: 09a743e600001bf2

This is a multi-part MIME Encoded message.
--MAIL_BOUNDARY
Content-Type: text/html; charset=sascii
Content-Transfer-Encoding: 7bit

...

In an earlier version (5.3) of smtpmail.p - which
Imail 8.2 appears to like - the header looks like:
...
Subject: LAB STORE Nightly Backup File Errors For
05/20/05
Date: 20 May 2005 10:36:39 EDT
MIME-Version: 1.0
Content-type: multipart/mixed; boundary="MAIL_BOUNDARY"
Content-Transfer-Encoding: 7bit
This is a multi-part MIME Encoded message
Message-Id: <200505201034281.SM03168@dsdstr3>
X-RCPT-TO: xxxxxx@xxxxxx.com
Status: U
X-UIDL: 316249820
X-IMail-ThreadID: f57343c500001986

--MAIL_BOUNDARY
Content-Type: text/html; charset=sascii
Content-Transfer-Encoding: 7bit

...

Is this a bug? What needs to be changed to make Imail
8.2 happy with the header format in 5.7a?