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cPanel Anti-Spam Tip: Turn On Your SPF

Posted by Jamison on 03 10 2015.

Unauthenticated mail services are prone to several issues, such as emails you send goes to the recipient’s Spam or Junk folders, or they bounce and you end up with the error “SPF record failure.”

 

When this happens, the recipient mail server locates your domain’ SPF record, and, in the event that it has not been added, or if it does not match the actual outgoing server IP address, the result is failure in mail delivery. This is a mechanism that ensures all email messages being sent and received are from legitimate and verified parties.

 

Another possible cause for this kind of email failure is the lack of configured SPF/DKIM for your own domain. Even if they are configured, but not in the proper manner, unauthorized parties can forge emails using your domain name’s mailbox. This is known as “mail spoofing.”

 

Now that you know more about these unauthenticated email problems, you might be…

Unauthenticated mail services are prone to several issues, such as emails you send goes to the recipient’s Spam or Junk folders, or they bounce and you end up with the error “SPF record failure.”

 

When this happens, the recipient mail server locates your domain’ SPF record, and, in the event that it has not been added, or if it does not match the actual outgoing server IP address, the result is failure in mail delivery. This is a mechanism that ensures all email messages being sent and received are from legitimate and verified parties.

 

Another possible cause for this kind of email failure is the lack of configured SPF/DKIM for your own domain. Even if they are configured, but not in the proper manner, unauthorized parties can forge emails using your domain name’s mailbox. This is known as “mail spoofing.”

 

Now that you know more about these unauthenticated email problems, you might be wondering how you can avoid such things from happening. If you are using cPanel, then you should know that there are tools you can use, particularly Email Authentication.

 

Email Authentication – A Quick Overview

 

Email authentication is comprised of anti-spoofing/spamming tools that you can find in your cPanel interface. SPF and DKIM records setup are the two main components of this feature.

 

Turning on the Sender Policy Framework (SPF)

 

The key responsibility of the Sender Policy Framework (SPF), is to help prevent unscrupulous individuals, such as spammers, from creating forged messages that often have a negative impact on your domain. With the use of SPF, you can minimize the number of bounce messages you get. This tool utilizes DNS records specifying authorized mail servers/IP addresses to send emails from your domain.

 

To enable your SPF

 

To turn on your SPF, the following are the steps you should take:

 

  1. Go to the “Mail” section of your cPanel home screen. Look for the “Email Authentication” option and click on it.
  2. Under the SPF window, click the Enable button.

 

Editing the advanced settings of your SPF configuration

 

Once you have turned on the SPF option in your cPanel Mail menu, you can now make revisions and adjustments to its configuration. Here, you can enter additional mail servers or IP addresses you want to authorize when sending email messages from your domain. A good example of when you may want to do this is if you  are going to utilize a third-party mail server.

 

To perform the changes on the SPF’s advanced settings, here are the steps you should follow:

 

  • Go to the “Mail: section of your cPanel home screen. Locate the button for Email Authentication and click on it.

 

  • Enter the names of the additional servers, hosts, or IP blocks in the section provided, and then click on the “Add” button.

 

  • In the event that you wish to remove servers, hosts, or IPB blocks from the list, just hit the “Remove” button.

 

  • When you want to exclude all of the other items on the list, just click the check box for the “All Entry” (ALL) option.

 

  • If you want to make a complete change, including your previous revisions and overwrite them, just click on the check box for the “Overwrite Existing Entries” option.

 

Once you are done making the necessary or preferred adjustments, just hit on the “Update” button and you are good to go.