Mail Server Issue

Hello all,

we're having an issue in configuring mail server settings in servicedesk plus .
We are useing office 365 as mail server. The account is correct, below you can find my configuration:

- Server Name / IP Address: smtp.office365.com

- Reply-to Address: servicedesk@domain.com

- E-mail Type: SMTP

- TLS Enabled

- Port: 587

Requires Authentication is checked and correct login information is written.

I'm trying to reply to an open ticket but I receive Sending notification failed error.