I have setup Odoo 11 Community edition for a client of mine... I need help in setting up email notifications for their calendar. Thus far notifications are sent through the browser. I need them to be sent via email incase they are not in the office. I have setup an email account on gmail and used gmail settings as the incoming and outgoing server settings on the Odoo server however no notification emails are sent to the users. I was expecting to Odoo to send the mails throufh this account but nothing goes through. Odoo says the settings are ok when testing them. Is there something I am doing wrong? 

Thank you