SPF Records and Domain Keys (DKIM)
cPanel allows users to create their own SPF and Domain Keys (DKIM) records. SPF and DKIM are tools used by many mail servers in an effort to combat spam.
In case you are having issues with emails landing in the junk/spam folders of your recepients or the emails bouncing back enable SPF/DKIM.
DomainKeys (DKIM)
It is a spam and phishing scam fighting method which works by signing outbound e-mail messages with a cryptographic signature which can be verified by the recipient to determine if the messages originates from an authorized system.
This ensures that messages are actually coming from the listed sender.
SPF
SPF will specify which machines are authorized to send email from your domain(s).
This means that only mail sent through this server will appear as valid mail from your domain(s) when the SPF records are checked.
Implimenting SPF and DKIM
SPF Records and Domain Keys can be set within the "Authentication" section of your cPanel.
You can find specific instructions in your cPanel and you can also review cPanel's documentation for more details.
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