Spam protection ensures that emails are sent only from authorized servers and prevents fake (spoofed) emails. This protection is mainly achieved using SPF, DKIM, and DMARC records.

What are SPF, DKIM, and DMARC?

SPF (Sender Policy Framework)
SPF specifies which servers are authorized to send emails on behalf of your domain. Emails sent from unauthorized servers are flagged as spam.

DKIM (DomainKeys Identified Mail)
DKIM adds a digital signature to outgoing emails. The recipient server verifies the signature to ensure the email hasn’t been tampered with.

DMARC (Domain-based Message Authentication, Reporting, and Conformance)
DMARC determines how emails should be handled if SPF or DKIM checks fail: accept, quarantine, or reject.

Why are SPF, DKIM, and DMARC Important?

  • Prevents emails from going to spam

  • Protects your domain’s reputation

  • Blocks spoofed emails

  • Improves corporate email security

  • Increases delivery rates on services like Gmail and Outlook

How to Add an SPF Record

  1. Open your domain DNS management panel

  2. Add a TXT record

  3. Example SPF record:

 
v=spf1 a mx ip4:IP_ADDRESS include:mail.my-domain.com.tr ~all

Note: Only one SPF record should exist per domain.

How to Add a DKIM Record

  1. Generate a DKIM key via your hosting or email panel

  2. Add the provided TXT record in your DNS panel

  3. Once active, outgoing emails are signed with a digital signature

How to Add a DMARC Record

Add the following TXT record in your DNS:

 
v=DMARC1; p=none; rua=mailto:dmarc@my-domain.com.tr; ruf=mailto:dmarc@my-domain.com.tr; fo=1

  • p=none → reporting only

  • p=quarantine → send to spam folder

  • p=reject → completely reject unauthorized emails

Post-Setup Checks

  • Send a test email

  • Check email headers in Gmail/Outlook

  • Review DMARC reports

FAQs

Can emails be sent without SPF, DKIM, or DMARC?
Yes, but the risk of ending up in spam is very high.

What happens if SPF is incorrect?
Emails may be completely rejected.

Do these settings need to be repeated?
No, unless your email infrastructure changes.

Why Domain.com.tr?

  • Expert SPF, DKIM, and DMARC support

  • Permanent solutions to spam problems

  • Secure corporate email

  • Fast technical support

Spam Protection Support:
If your emails are going to spam or you need help setting up SPF, DKIM, or DMARC, contact the Domain.com.tr technical team.

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