Every message from one of my subscribers to the list has undecipherable
material appended at the end (example below).  Can anyone explain this?
 
 
------ =_NextPart_000_01BA807B.9F2D7880
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
 
We are using .... (legible message deleted)
 
 
------ =_NextPart_000_01BA807B.9F2D7880
Content-Type: application/ms-tnef
Content-Transfer-Encoding: base64
 
eJ8+Ig4AAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG
AGABAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAGUAAAAAAAAAgSsfpL6jEBmdbgDd
AQ9UAgAAAABQZWRpYXRyaWMgRW1lcmdlbmN5IE1lZGljaW5lIERpc2N1c3Npb24gTGlzdABTTVRQ
(more of same deleted)
UtwqFa2DbKSAY8WQfQAfCWh2QcZJfPT8+Tz9cCoUVMQB2UAAAAAMAEBAAAAAAAwAR
EAAAAABAAAcwIGVHLqWAugFAAAgwIGVHLqWAugEeAD0AAQAAAAUAAABSRTogAAAAAFmM
 
------ =_NextPart_000_01BA807B.9F2D7880--