[Mailman-Users] How to subscribe user without notify one

[Степанов Роман Владимирович]

Dear mailman,

 

 

 

We have automotive process to subscribe/unsubscribe when users visit a site and select a specific list and leave  their email than robot must send a command by email to mailman to subscribe or unsubs that user. 

 

How to do it by email command not from GUI or command line tool without notify user?

 

 

 Thank you in advance,

 

Roman Stepanov