You could utilize a managed SMTP service like AWS SES or Mailgun, which is free for up to 10,000 emails per month. They have reference configurations for variou

You could utilize a managed SMTP service like AWS SES or Mailgun, which is free for up to 10,000 emails per month. They have reference configurations for various MTAs[1] and you wouldn't have to manage IP reputation yourself. [1] https://documentation.mailgun.com/en/latest/user_manual.html#smtp-relay https://documentation.mailgun.com/en/latest/user_manual.html...