For those of you looking for the format of the QWK mail packets I have
put this file together.

OffsetlengthDescription
----------------------------------------------------------
11Message status flag
' ' public
'-' public and read
'+' private
'*' private and read
27Message Number (as characters)
98Date (mm-dd-yy)
175Time (hh:mm)
2225To
4725From
7225Subject
9712password
1098refer to Number
1176Number of 128 byte blocks in message (including
the header)
1231Killed Message? 225 is active, 226 is active
1241Conference number (0-255)
1254Not used


The NDX files are:

OffsetlengthDescription
-----------------------------------------------------
14Record number to point to corresponding
message
51Conference number.


This info can be used to develop a mail reader program. A good
exercise in programming.