This interface will help you to identify the problems with your mail related DNS records such as SPF, DKIM, PTR etc. The system uses these records to verify that other servers can trust it as a sender. The Email deliverability feature in WHM displays the following details.

Domain: The server’s hostname.

Mail HELO: The server’s HELO configuration.

In the next section, we deal with the SPF, DKIM, PTR records.

SPF record is a Sender Policy Framework which helps to identify which servers are authorized to send mail for a domain. This will help you to reduce Spam activity in your domain. DKIM record is another method to validate the authenticity of email messages. Here the sender sends a mail which includes the private key and then the recipient server check the DNS server for the domain for the public key to verify the signature. This will also help to reduce the spam from your domain. PTR record is a DNS record that resolves the IP address of your hostname/domain name.

To access the ‘Email Deliverability’ feature in WHM, please follow the below steps:

1) Login to your WHM interface.

2) Click on the option ‘Email Deliverability’ under the ‘Email’ section.

From that interface, you can manage all the mail related DNS zones for the server. You can add records like SPF, DKIM and PTR records for your server hostname from there. Also, there is a feature called ‘Customize an SPF Record’ is available there, using this you can simply customize the system recommended SPF record for the domain.