Have you ever received complaining messages from your users about emails sent to them from your email server, without your knowledge? Or maybe the emails you are sending are going directly to the users’ SPAM inbox?
Problems like these can seriously affect your business. Your clients can get phished and send their private information to a fake address which is pretending to be you. This can damage your reputation and can lead to different bans for you.
If you have such problems, then you need a Sender Policy Framework (SPF) to prevent spoofing and improve the reliability of your e-mail server. It is a validation system that verifies the legitimacy of your email server.