📡 DNS TXT record (add to your DNS)

Record name (Host):

Type: TXT

Value:

💡 If your DNS provider limits TXT record length — split the value into 255-char quoted chunks.

🔐 Private key (for your mail server)

⚠️ Never share the private key! Store it securely.

🔓 Public key

📖 How to apply

Add the DNS TXT record above to your domain settings (registrar or Cloudflare).
Copy the private key and save it on your server (e.g. /etc/dkim/mail.private).
Configure Postfix/Exim/OpenDKIM to use this key with the chosen selector.
Wait for DNS propagation (up to 48h) and verify DKIM via mail-tester.com.

🔑 DKIM Generator