cPanel Tutorial – Email Deliverability
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cPanel Tutorial – Email Deliverability


Hello there! This is Ashley, a technical
writer with the documentation team at cPanel, the hosting platform of choice.
I’m going to show you how to use our Email Deliverability interface. This was
previously our Authentication interface, but we renamed this to more clearly
describe its purpose and functionality. We’ve also made some changes that make
it much easier to manage your domains’ DKIM, SPF, and reverse DNS records. But what
are these records and what purpose do they serve a domain? DKIM, or
Domain Keys Identified Mail, verifies the sender and the integrity of a message.
SPF, or Sender Policy Framework, verifies that the message your domain sends
originated from a listed server. Reverse DNS, or PTR records, are DNS records that
resolve an IP address to a domain or hostname. The system uses PTR records to
perform a reverse DNS lookup to retrieve the associated domain or host name. When
you properly configure your records, it improves the chances that your email
is not treated as spam by other servers. Why don’t we check out that new Email
Deliverability interface? First, let’s login to our cPanel account. The cPanel
interface will appear. On our cPanel interface, let’s select Email
Deliverability from the Email section. The Email Deliverability interface will
appear. Here we can view the current status of our domains DKIM, SPF, and
Reverse DNS records. The Domain column lists all of our domains. The Main Domain
label here identifies that this was the domain that our hosting provider used to
create our account. The Email Deliverability status column displays
the status of each domains DKIM, SPF and Reverse DNS records, whether valid or
invalid. When our records are properly configured, the system displays a valid
status message. When there is a problem with the record, the system will display
it here. For example, our main domain currently has some record issues that
require our attention. The final column here provides the
repair and manage options for our domains.
Let’s click Repair. The system displays the Repair interface. This feature lets
us quickly address any problems with our domain’s records. It allows the system to
repair a domain’s invalid records with its recommended changes. Note that this
option is unavailable if the system does not control the domain’s DNS records. In
that case you’ll have to contact the person responsible for that domain’s nameservers and ask them to update the records for you.
We can review the system’s recommendations for any invalid
records, copy information, customize the suggested SPF record, or download our private key
before approving any changes. Once we click Repair, the system proceeds with
checking the repaired records to ensure that the changes are valid. For now, let’s
click Cancel. The Manage feature lets us manage a domain’s records. Why don’t we
check it out? Let’s click Manage for our main domain. The system directs us to the
Manage the Domain interface. This interface displays the status of a
domain’s DKIM, SPF, and Reverse DNS records. Each section provides the Copy feature,
which allows us to copy the provided information to our computer’s clipboard.
If you use this functionality, don’t forget to paste that copied information
somewhere. The system only stores the most recent information copied. In the
DKIM section we can view the DKIM record’s Name and Value information. This
section also provides the Download the Private Key link. When we click this, the
system directs us to the Download the Private Key interface. Note the interface
warning here: If others obtain your private DKIM key, they could sign emails
and impersonate you as a sender. This is a potential security risk, so always be
sure that you provide your private DKIM key to a trusted user. For now, let’s
click Go Back and return to the Manage a Domain interface. Let’s click Install the
Suggested Record. A confirmation window will appear. Note
the warning here: If you send email from another server,
you must use the new DKIM record on that server. So if you modify your DKIM
record here, make sure that you update your remote server’s records, too. Let’s
click Cancel. Next we have the SPF section. The Suggested SPF (TXT) Record
section here displays the system’s recommendation for a valid SPF record. We
can copy the record’s Name or the SPF record from the Value text boxes, If we
want to modify our SPF record, we can click Customize under the Value text box.
Let’s click Customize. The Customize an SPF Record interface will appear. On this
interface, the system displays our current record, if one exists, and the
system’s record recommendations. Currently, we don’t have an SPF record. In
the Domain Settings section here we can modify our record’s Additional Hosts and
Additional MX Servers. Additional Hosts allow the server to approve any other
hosts we define. By default, the system automatically includes the primary mail
exchanger, or MX, and any servers you’ve created an MX record for. We won’t have
to include those in our record, but for this tutorial, why don’t we add another
host? Click Add a New Host (+a) Item. A new text box will appear. Let’s enter
mail dot example dot com in the text box. Next, we have Additional MX servers. This
allows the server to approve all MX entries for each domain we’ve specified
to send mail. Click Add A New “+mx” Item. A new text box will appear. For this
tutorial, let’s enter example dot com. The IP Address Settings section allows us to
define a range of IPv4 or IPv6 address blocks. You can provide this information
in either IP address or Classless Inter-Domain Routing, or CIDR, format. For
this tutorial, let’s enter another IPv4 address.
Click Add A New “IP4” Item. A new text box will appear. Let’s enter 10 dot 0 dot 0 dot 1 in
the text box. Finally, we have the Additional Settings section. The Include
List lets us define any hosts that we want to include in our record. So if we
use a service such as comcast dot com, mailchimp dot com,
or google dot com, we would want to include that here. For this tutorial, let’s add
Google services to our suggested record. Click Add A New +include Item. A new
text box will appear. Enter Google dot com in the text box. The Exclude All Other Hosts
section defines whether we want to prevent a host from sending our domain’s
mail. Note that if you enable this setting, the SPF record will
automatically fail any undefined hosts. This means that the SPF record only
respects the host defined in your record. So if you’re experiencing forgery with
a domain, this might be the option for you. Forgery, or email spoofing, can result
in a lot of emails bouncing back and getting redirected. This option can help
to decrease the volume of bounce-back emails you receive. Too many bounced
emails can overwhelm a mail server and reduce its performance. By default, the
system generally recommends the ~a authorization. This authorization
means that mail from a server that isn’t defined in our +a and +include
settings is marked as suspicious or spam. For now, let’s stick with the system’s
recommendation. We will leave this unchecked. Now that we have modified our
record, we can view our changes here in the Preview of the Updated Record
section. Let’s go ahead and save our modified SPF record. Click Install A
Customized SPF Record. The system confirms that it has saved our record. Click Go
Back. The Reverse DNS (PTR) section displays our
domain’s current PTR Name and Value entries. When a problem exists, depending
on the record’s configuration, this section will advise how best to fix the
problem. This includes issues such as a misconfigured record or if the
system is sending mail from a private IP address. This section may require the
assistance of your hosting provider if you cannot resolve a problem with your
PTR record. Follow the provided instructions on the interface. Also, this
section may be unavailable if your hosting provider has enabled smarthosting. But that’s ok! Smarthosts are email servers that allow
external parties’ emails to be forwarded to the email server of the email
recipient. With this enabled you don’t need to worry about your domain’s PTR
records. Let’s click Go Back to return to the
Email Deliverability interface. Thank you for watching! I’ve included a link to our
interface documentation in the video description below. Be sure to like and
subscribe to our channel so that you’re up to date with our tutorial and video
releases. If you’d like more information about cPanel, visit us at cpanel dot com or
follow at cpanel on Twitter. And while you’re there, let us know what tutorials
you’d like to see. Thank you for watching and have a wonderful day!

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