Configure email DNS and find the selector
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1
Open Email Deliverability
In cPanel open Email, Email Deliverability, locate the sender domain and choose Manage. Review the DKIM and SPF status shown for that domain.
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2
Repair or copy the records
If cPanel controls DNS, review and apply Repair. If the domain uses external nameservers, copy the Suggested DKIM and SPF names and values into the actual DNS provider instead.
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3
Find the selector
Read the DKIM record name shown by cPanel. The text before ._domainkey is the selector. Confirm it against s= in a DKIM-Signature header from a newly sent external message.
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4
Publish DMARC carefully
Use Zone Editor or the authoritative DNS provider to publish one DMARC TXT record at _dmarc. Start with the policy approved by the domain owner and review reports before strengthening enforcement.
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5
Run VerifySeal and add the signature
Enter the selector, run the SPF, DKIM and DMARC check, then follow the Roundcube, Gmail, Outlook, Apple Mail or Thunderbird guide for the issued seal.