If you are sending emails as a marketing newsletter or send unsolicited emails, please note that in Australia there are laws that prevent this behaviour.
If you are sending a newsletter, to protect you and other users from being reported for misuse of your inbox, we'd encourage you to sign up for tools such as Mailerlite (we're an affiliate), Brevo or Hubspot.
Note, we are not responsible for the recommendations provided. Please consider your own needs before making a decision.
