The following is the configuration in both frontend and backend:

Frontend settings (Settings > Technical > Email > Outgoing Mail Server)

SMTP Server: smtp.live.com

SMTP Port: 25

Connection Security: TLS(STARTTLS)

Username: xxxxx@xxxxx.co

Password: xxxxxx

Backend settings (file in directory /etc/odoo-server.conf)

smtp_password = xxxxxx

smtp_port = 25

smtp_server = smtp.live.com

smtp_ssl = False

smtp_user = xxxxxx@xxxxxx.co

Getting the following error when testing the connection:

Connection Test Failed!

Here is what we got instead:

535

5.0.0 Authentication Failed

Also I tried differnt alternatives with the same result.

Any help on this error will be highly appreciated!