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Instant DKIM Record Generation for Better Email Deliverability
DKIM (DomainKeys Identified Mail) helps email providers verify that emails sent from your domain are legitimate, preventing spoofing and phishing attacks. Smartlead’s DKIM Generator lets you generate your DKIM record with just a few clicks.
SPF Record Generator
Ensure you send emails only through your authorized servers and reduce spoofing risks while improving deliverability.
DMARC Record Checker
Check if DMARC records are set up correctly for your domain. Ensure your email authentication policies protect your domain.
4 Simple Steps to Generate a DKIM Record
A Spam Checker scans your email copy and identifies the words and phrases that trigger spam filters. Once the spam word checker identifies these red flags, you can edit them and ensure your emails land in your recipient's inboxes. The email spam detector lets you optimize emails for better deliverability and higher engagement. Below is the step-by-step process of how to use the Email Spam Checker.
Enter Your Domain
Select a DKIM Selector
Choose Key Size
Copy & Add to DNS
What is DKIM and Why Is It Important?
DKIM (DomainKeys Identified Mail) is an email authentication protocol that verifies email legitimacy by attaching a digital signature to outgoing messages. Email providers use DKIM signatures to ensure emails are not altered during transmission.
- Reduces the risk of spoofing and phishing
- Improves sender reputation and email deliverability
- Prevents emails from being flagged as spam
Use cases: When to run a spam test
A spam checker works as an essential tool for any business or marketer looking to maintain the sender's reputation. Here are the common use case scenarios for using a spam checker,
When Should You Use a DKIM Generator?
Without DKIM, your emails may be flagged as spam or fail authentication checks. Scammers can spoof your domain, ISPs can block your messages, and your email campaigns can fail before they start.
Your Marketing Emails Are Going to Spam
You created a full-proof email campaign. It’s engaging, it adds value to the users—but as you send it out, the emails land in the spam folder. The reason can be missing DKIM authentication. Without DKIM records, mailbox providers can’t verify that the email is really from you. So, if you are sending marketing emails, generate a DKIM record and authenticate your messages to land in inboxes, not spam.
Someone Is Spoofing Your Business Emails
You receive complaints from customers about emails they supposedly got from your company—except you never sent them. Email spoofing can destroy brand trust. DKIM prevents this by ensuring that only emails signed with your domain’s unique key are recognized as legitimate.
Your Transactional Emails Aren’t Reaching Users
Customers rely on you for order confirmations, password resets, and important notifications. If these emails aren’t authenticated with DKIM, they may be flagged as suspicious or even rejected by the recipient’s email provider or land in the spam box. Implement DKIM to ensure your emails reach inboxes.
You’re Running a Cold Email Outreach Campaign
B2B cold outreach can be tricky. If your emails aren’t authenticated, they’re more likely to be blocked. DKIM helps establish credibility, giving your emails a higher chance of being opened and read by prospects.
You Want Better Email Analytics and Trust from ISPs
Internet Service Providers (ISPs) track your sender's reputation. Emails without authentication can lower your sender score, reducing deliverability over time. DKIM helps you maintain a positive sender reputation and provides better tracking for email analytics tools.
Frequently Asked Questions
What are DKIM Selectors?
DKIM selectors are used to distinguish multiple DKIM keys that might exist for a domain. It allows email recipients to know which key to use when verifying the signature in the email header. A DKIM selector is typically added to the record as part of the DNS entry and helps identify which public key to use for email verification.
How to get a public key for DKIM?
The public key for DKIM is generated as part of your DKIM record. Smartlead DKIM generator tool creates both the private and public keys. You can copy the public key and paste it as a TXT record to your DNS settings. It allows email receivers to verify the DKIM signature.
Is DKIM free?
Yes, DKIM itself is free to implement. You can generate the DKIM record on Smartlead’s DKIM Generator without any cost. However, if you’re using a premium DNS service, there might be some costs associated with the DNS hosting.
Who provides the DKIM key?
The DKIM key is typically generated by the sender’s email server or a third-party service. Many email providers (like Google Workspace or Microsoft 365) offer DKIM generation as part of their email setup, but you can also generate DKIM keys using specialized tools like Smartlead’s DKIM Generator.
Can I have two DKIM records?
Yes, it’s possible to have two DKIM records for a domain. This is useful if you have multiple email servers or third-party services sending emails on behalf of your domain. Each service can use a different DKIM key and selector.
How do I publish a DKIM record?
To publish a DKIM record, you need to add it as a TXT record in your domain’s DNS settings. Log into your DNS hosting provider’s control panel (such as GoDaddy, Cloudflare, etc.), and paste the DKIM record provided by your DKIM generator tool. After the record is saved, it will be available for email servers to verify the authenticity of your emails.
Can I use DKIM without SPF?
Yes, DKIM can be used independently of SPF (Sender Policy Framework). However, both DKIM and SPF should be used together for stronger email authentication. DKIM verifies the sender’s identity using cryptographic signatures, while SPF ensures that the sender’s IP address is authorized to send emails on behalf of your domain.
How is DKIM verified?
DKIM is verified by email receivers (such as Gmail, Yahoo, or Outlook). When an email is sent, the email provider checks the DKIM signature in the email header against the public key in the DNS record of the sender’s domain. If the signature matches the key, the email is verified as legitimate. If not, it may be flagged as suspicious or marked as spam.
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