HOW TO: Configure reDNS, SPF, DKIM for Email Inbox Delivery Success
Posted by Shakir M. on 01 August 2019 04:18 PM

To Insure your mail sever is tweaked correctly. Please make sure you have the following configured on your domain DNS and mail server.


Note: If your domain DNS is managed by Shinjiru and using the shared hosting environment all the above settings done by default for your domain and email server. 


1. Make sure your server IP address has rDNS or PTR record. Resolved to your server hostname, and example, this will help in your email deliverability and authentication over all email severs on the internet as well as keeps your IP address clean and protected from IP blacklisting in RBL’s.


An example:

 =====” resolve to a hostname  “



In order to set the rDNS/OTR, Please email our support team at  or submit a ticket on   to set the rDNS or PTR for your server IP address. All you have to provide is the hostname or the domain name that you want to use.


2. Add SPF record:

Sender Policy Framework (SPF) record. SPF verifies that the messages your domains send originated from a listed server. In addition, it provides a list of servers approved to send mail from your domains.

You can copy the SPF record from your cPanel > Email Deliverability to your domain DNS server.


An example will of SPF record will like below:


=====  TXT  "v=spf1 mx a ip4: ~all"



3. Add DKIM record:


Domain Keys Identified Mail (DKIM) record. DKIM verifies the sender and the integrity of a message. In addition, it allows an email system to prove that spammers did not alter an incoming message while in transit. DKIM also verifies that the messages your domains receive come from the specified domain.

You can copy the DKIM record from your cPanel > Email Deliverability to your domain DNS server.


An example will of DKIM record will like below:

===== TXT 

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAp8RXvyeGK9t+vsATWEgx8IO70JWIUaj2yIvKMcb0N5tAWX8cvec41WI2FqLsJ10qNq+bgVPoo9e1l1+IHPiQYK4ZQ4a+a90S2xjvIPAliMpmP7bvZ1CN7TlJVWx9aIROWVIDkkyw8XMoCxyyIhB2Umju9dJQXiTZf0Nocnr5WdSURi/wNHJxRqDZUTvGVrQQ1kG+H3TVizuMlVNmeSO/Ss4L5x0YOij4FX8Wa8TByxYjq+sDxYvfVHhX6AFZdxbs82d542Asgcx7ACNqrAEwFHj/wCmbIqiebCGsA1EoMpqNAhjcBBamoRKr+eWNbZuvMhl6u8EklIBBurIKWVTIFQIDAQAB;



If you are using a VPS or Dedicated server you can always droop us an email at  or submit a ticket support on . To help tweak your email sever settings. 


If you are using a DNS server that belong to your domain registrar, you can add the above records on your DNS management portal or you can contact your domain registrar to assist you.  


If you are using Cloud Flare for your DNS management you can added the record as pew below steps:


  1. Log in to your Cloudflare account .
  2. Click Select Website.
  3. Select the domain you are you want to add the SPF and DKIM records from it.
  4. Click the DNS
  5. In the DNS Records section, select TXT
  6. Enter @ in the second field which ensures the TXT record points to the root domain.
  7. In the third field, enter the value if the SPF or the DKIM records.
  8. In the certificate field, select Automatic TTL.
  9. Click Add Record. 

Also you can refer to this URL guide provided by CF. 


Feel free to contact us if you require any further assistance on tweaking your email server. Email at  or Submit a support ticket on .


(2 vote(s))
Not helpful

Comments (0)
Copyright © 1998 - 2021 Shinjiru International Inc. All Rights Reserved.