Hey Jetison,
You need to connect your IT department for this.
They can provide you the server and port of your email.
Hope it helps!
If it’s Gmail settings you specifically need, you can find them here. It’s the SMTP section you need.
https://support.google.com/mail/answer/7126229?hl=en-GB#zippy=%2Cstep-change-smtp-other-settings-in-your-email-client
You will also need to set up an App password in Gmail as you can’t use your usual password when sending emails from your application.
https://support.google.com/mail/answer/185833?hl=en