Keel SMTP notification error

[EmilyGrant00]

I am trying to run keel with mail notification configured. Right now, my configuration for notification looks like this:

mail:
  enabled: true
  from: "[email protected]"
  to: "[email protected]"
  smtp:
    server: "smtp.office365.com"
    port:  587
    user: "[email protected]"
    pass: "my_password"

Currently when I run keel with this config I get the error:

level=error msg="extension.notification.mail: failed to send notification" error="504 5.7.4 Unrecognized authentication type [... .CANPRD01.PROD.OUTLOOK.COM ... ]"

Using port 25 for smtp as shown in the docs gives this error instead:

level=error msg="extension.notification.mail: failed to send notification" error="dial tcp 40.99.xxx.xx:xx: connect: connection timed out"

Seems like it might be outdated? But any help would be appreciated,
Thanks!