How do I create a DKIM record?
Here are the steps to a correct DKIM setup:
- List all your sending domains.
- Install a DKIM package on your email server (see details below)
- Create the public and private DKIM key pair.
- Publish the public DKIM key.
- Hide the private DKIM key.
- Configure your email server.
- Test your DKIM setup.
Is DKIM a TXT record?
A DKIM record is a specialized DNS TXT record that stores the public key used to verify an email’s authenticity.
How do I add a DNS TXT record to DKIM?
Create a DKIM TXT record
- Log in to the Cloud Control Panel.
- In the top navigation bar, click Select a Product > Rackspace Cloud.
- Select Networking > Cloud DNS.
- Click the gear icon next to the name of an existing domain and select Add DNS Record.
- In the pop-up dialog box, select TXT Record as the record type.
What is DKIM record?
DKIM is a process to validate sending domain names associated to email messages through cryptographic authentication. It achieves this by inserting a digital signature into the message header which is later verified by the receiving host to validate the authenticity of the sending domain.
How does DKIM record look like?
The DKIM DNS record is made up of different informational elements that are represented by the use of tag=value pairs. The tag is usually a single letter followed by an equal sign (=). The value of each tag indicates a specific piece of information about the sender and public key.
Can I have 2 DKIM records?
Can you have multiple DKIM records on a single domain? The answer is yes, you can have as many DKIM records on your domain as allowed by your DNS provider.
Can you have 2 DKIM records?
Can I have multiple DKIM records? A domain can have as many DKIM records for public keys as servers that send mail. Just make sure that they use different selector names. Read about the importance of rotating your DKIM keys and automating that process here.
How DKIM works step by step?
In general terms, the process works like this: A domain owner publishes a cryptographic public key as a specially-formatted TXT record in the domain’s overall DNS records. When a mail message is sent by an outbound mail server, the server generates and attaches a unique DKIM signature header to the message.
What is a DKIM signature?
A DKIM signature lets mail transfer agents (MTAs) know where to retrieve information on the public key. That’s used to verify the identity of the sender. If the two keys match, mailbox providers are more likely to deliver it to the inbox.
How many DKIM records can a domain have?
How many DKIM keys can I have?
You can have only one active DKIM key per domain name. You can have multiple active DKIM keys if: Your company sends mail from multiple domains, or. You use subdomains under your organizational domain and specify domain matching at the subdomain level.
How is DKIM signature generated?
The DKIM signature will be generated in a unique textual string, the ‘hash value’. Before sending the email, the hash value is encrypted with a private key, the DKIM signature. Only the sender has access to this private key.
Why are there 2 DKIM records?
The possibility of having multiple DKIM records on a single domain is instrumental in the following scenarios: an organization uses multiple email delivery services to send emails on behalf of a single domain, in which case, multiple DKIM selectors and private/public key pairs must be used to separate these services.