I created an automated action: When someone fills the contact form, and lead is created, email is sent to specific email address containing the lead info. Its working fine, it does create the emails but the problem is that Emails are not sent, hence, scheduled action "Email Queue Manager"  is not working as I guess. Manually, emails are sent but not automatically. Any Ideas how to solve this problem?

I have tried to solve it following similar forum questions but no result:

https://www.odoo.com/forum/help-1/question/automated-action-birthday-email-55646

https://www.odoo.com/forum/help-1/question/how-can-i-set-the-automated-action-about-email-notification-31890