DKIM keys are a crucial part of any email setup for your website, no matter where you host it or where you bought your domain. Whether your site is on WordPress, Wix, Squarespace, Shopify, or Weebly, and whether your domain is from Namecheap, GoDaddy, Network Solutions, Bluehost, Hostinger, or Google Domains, DKIM ensures your emails are authenticated and trusted by providers like Google, Microsoft, and Yahoo. Without DKIM, even legitimate emails from your own company can get flagged as spam or fail to deliver entirely.
Why DKIM Keys Are Important
Generating and verifying a DKIM key for your company’s email provider is essential to prevent email delivery issues now and in the future. Without a DKIM key, emails might appear suspicious to Google or other mail servers, even if you’re sending perfectly legitimate messages.
For example, we once worked with a client who sent a major email campaign to over 4,000 recipients. Even though this was not spam and the recipients had opted in, Google flagged the emails as spam because there was no DKIM authentication. As a result:
Consequences
- Emails landed in spam folders or didn’t deliver at all.
- The company’s Google Business Profile was flagged for potential deceptive content.
- Appeals to restore the profile were denied because Google determined the domain had insufficient email authentication.
This example highlights why every business—small or large—needs DKIM configured properly.
How Does DKIM Work?
DKIM works by creating a pair of cryptographic keys for your domain:
Public Key
The public key is stored in your domain’s DNS as a TXT record. This is what email providers use to verify that your emails are coming from an authorized source.
Private Key
The private key lives on your email server and adds a DKIM signature to every outgoing email. This signature tells the receiving server: “Yes, this email really came from this domain, and it hasn’t been tampered with.”
Why it’s important: Without this signature, your emails are much more likely to be flagged as spam, and your domain reputation can take a hit.
Why You Need a DKIM Key
- Ensures emails land in inboxes, not spam.
- Protects your domain reputation with email providers.
- Prevents your Google Business Profile from being flagged.
- Provides proof of authenticity for each message your company sends.
What If I Have a DKIM Key but It’s Not Working?
If your DKIM setup isn’t working:
Check the TXT Record
Ensure the DKIM key is correctly entered as a TXT record in your DNS settings through your domain’s nameserver host.
DNS vs Website Host
Sometimes your website host (e.g., WordPress hosting) is different from your domain registrar. In that case, you need to update the DNS settings where the domain is actually registered, not necessarily where your website lives.
Test Your Setup
After entering your DKIM record, send a test email to a Gmail or Google Workspace account and check the headers for “DKIM=pass”.
How Do I Know Who Hosts My DNS Settings?
To quickly check:
- Use a site like WhoIsHostingThis.com or MXToolbox
- Enter your domain and look for the nameserver information. This tells you where your DNS records are managed.
Questions?
DKIM can seem intimidating at first, but it’s one of the most important steps to protect your email and your business reputation. If you’re unsure or want help verifying your DKIM setup, reach out to us at BetaByte Online! We’ll walk you through the process so you can focus on running your business, not battling email headaches.
