Many devices that send emails on your behalf utilise SMTP services to send those emails. If your account is provided through Office 365, you can route those emails through your account.
SMTP SettingsFor SMTP, the following settings must be used:
Username: Your Office 365 Username
Password: Your Office 365 Password
Bits to NoteOffice 365 enforces TLS 1.2 on SMTP connections. Your device must support TLS 1.2 or later to work in this setup.
The Username must be for a licenced Exchange Online user. If you need to send as another address, you should grant that user permissions to send as that address. Sent Items will be placed in the mailbox of the original user.
If your account is configured with Multi-Factor Authentication, you may need to use an App Password unless your SMTP application supports Modern Authentication.