How to Generate a DKIM Key with Libraesva
Follow the steps below to properly configure DKIM signing for a domain using the Libraesva control panel. A valid DKIM setup improves email deliverability and authenticates messages sent from your domain.
- Log in to the Libraesva control panel.
- Navigate to System → Mail Transport → DKIM Signing.
- Click on Add to include a new domain in the configuration.
- Select the domain from the list and enter u1 in the Selector field.
Click Save to confirm. - Select the checkbox next to the newly added domain and click on Generate Keys.
⚠️ WARNING
Make sure to select only the domain you want to configure. Selecting others may overwrite their existing keys.
- Once the key has been generated, click the magnifying glass icon to view the DNS details.
Copy the content from the DNS record value field. - In your domain’s DNS management panel, create a new TXT record with the following parameters:
- Name (Host):
u1._domainkey.YOUR_DOMAIN_NAME
- Type: TXT
- TTL: 3600
- Value: the string copied from the DNS record value
✅ Tip:
Once the DNS record is created, wait 1–2 minutes, then send a test email from the configured domain to mail-tester.com.
If everything is set up correctly, you should receive a score of 10/10! - Name (Host):