[MM3-users] Send MySQL data to mailman list for distribution

I'm trying to connect existing MySQL data to the Mailman distribution list. Actually, a message is sent from the web page. It remains on this page and is also stored in the MySQL table on the provider server. This is working fine. I have also existing Mailman distribution list generated from the cPanel on the provider server as well. This list is working fine when used for a direct mailing.

I need to link the MySQL table to the Mailman distribution list. When the message is posted on the web page and stored in the MySQL table, it is also to be sent to members as per the Mailman distribution list. I don't know where to configure it. In the phpMyAdmn page of the MySQL or in the Malman menu ?

Thank you for your help