How to add SPF, DKIM, and DMARC
How to add SPF (Sender Policy Framework)
1- Login into your Gandi account.
2- Click on Domain on the left then select the domain you want to modify.
3- Click on the DNS tab at the top and you'll see the DNS records of the domain you selected.
4- And try to select Add button.
5- Select the TXT tab and make sure to add your SPF Record Value and leave the Name part empty as it’s for your root domain.
For example:
In this case, we whitelisted Zoho’s SPF in our DNS zone.
|
Record Type |
Name |
Value |
|
TXT Record |
Leave it empty |
v=spf1 include:zoho.com ~all |
6- Additionally if you’re using sources that only have an IP address you can add the IPs in the same current SPF record.
|
Record Type |
Name |
Value |
|
TXT Record |
Leave it empty |
v=spf1 ip4:169.148.146.23/32 include:zoho.com ~all |
7- Click “Create” to finish your Gandi SPF setup.
Note: Having multiple SPF Records for a single root domain is a bad practice and results in authentication failure. If you use multiple sources within your organization, you must have them whitelisted in a single SPF Record.
How to add DKIM (Domain Keys Identified Mail)
It’s the same process for DKIM as well, but we will do some changes for DKIM.
Note: Before diving into steps on how to add DKIM to your Gandi, it is important to understand that each provider has their own Private/Public Keys that they provide to their customers. In this article, we are focusing on Zoho Mail. We’ve generated the DKIM Public signature from the Zoho Mail portal, and in the next steps, we are going to implement it in our DNS (Gandi).
1- Try to create a new tab for your DKIM setup.
2- Make sure to add your DKIM Record Name, and Value from the same TXT tab.
|
Record Type |
Name |
Value |
|
TXT Record |
zmail._domainkey |
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+BeYApQiIf2makHXZzj/vmRNO kmQXqVu4aKYcNqj5ANGbJNYGROfo63TTlu2KUWootMQ1nHiiKfFODPO6LjUwn3zp mRv7ONmcm40QOysLrv5cGk+l9letBM7DnVqrvHsMOMHVv1q87fy1n4DuqDM/cVKM qaAExyY+yAKZfUfuRQIDAQAB |
The value part contains the public DKIM signature that was generated from the Zoho Mail portal.
3- Click “Create” to finish your Gandi DKIM setup.
How to add DMARC (Domain Message Authentication Reporting Conformance)
Now from the same place, we can add the DMARC as well.
There are 2 ways to generate DMARC Record:
- When you directly register on EasyDMARC, our system automatically provides you a DMARC Record upon adding your domain
- You can also use EasyDMARC’s DMARC Record Generator tool to get a DMARC Record
After generating DMARC Record, you need to update it in your Gandi.
From the same TXT tab make sure to add your DMARC Record Name and Value.
|
Record Type |
Name |
Value |
|
TXT Record |
_dmarc |
v=DMARC1;p=none;rua=mailto:29506ecf8e@rua.easydmarc.us;ruf=mailto:29506ecf8e@ruf.easydmarc.us;fo=1; |
Important Note:
It’s always recommended to first start your DMARC Journey in Monitoring mode (p=none). That will help you gather reports, identify & authenticate legitimate email servers used in your organization, and later on advance your Policy to higher levels such as Quarantine or Reject.
After updating, click “Create” to finish your Gandi DMARC setup.