[Mailman-Users] Digest Format Change: Possible?

[J.A. Terranson]

Greetings, is it possibe to tar  digest and 
turn this:

| Message: 4
| Date: Sat, 20 Dec 2008 12:12:18 -0600 (CST)
| From: "J.A. Terranson" <measl at mfn.org>
| Subject: [GasNet] Testing - Please Ignore.
| To: ccm-l at ccm-l.org, med-events at ccm-l.org, med-jokes at ccm-l.org,
|      gasnet at ccm-l.org
| Message-ID: <Pine.LNX.4.64.0812201209360.11196 at mx1.mfn.org>
| Content-Type: TEXT/PLAIN; charset=US-ASCII

into this:

| Message: 4
| Date: Sat, 20 Dec 2008 12:12:18 -0600 (CST)
| From: "J.A. Terranson" <measl at mfn.org>
| Subject: [GasNet] Testing - Please Ignore.

<removal of lines 4-6>?


Possible?????

Thanks,

//Alif