SPF (Sender Permitted From) is used to authentication your email. SPF is a DNS record that adds to your DNS. It contains your email server IP Address/Hostname of sender mail Domain. Many email server will bounce back email or move the email to spam for the mail domain without having SPF Record.
Steps to Add SPF Record in Plesk.
- Generate SPF Record for your Domain from this link.
- Login to the Plesk Panel.
- Click on DNS Settings.
- Click on Add Record.
- Select TXT as Record type from Drop-Down and Enter your TXT record and hit OK Button.
- Click on the Update button to apply the changes to the DNS zone.