[Mailman-Users] Need some help

[vijay]

Hello Mailman users,

         I'm facing problems with unsubscription, we have not given URL 
to unsubscribe as our bandwidth is very less. i've given mail-id to send 
their blank email to unsubscribe. the problem is they are sending emails 
from different mail-id which are not subscribe with the list ( virtual 
email-id's configured with their mailbox). 

         So i want to attach their mail-id in the message sent to them. 
but mailman is not supporting that option "Header added to mail sent to 
regular list members". so can anybody help in this matter.

Thanks
Vijay