DNS Record Generator
Generate DKIM, SPF, DMARC, and MX DNS records for email authentication
Configuration
Monitor only - emails delivered normally
What are SPF, DKIM, and DMARC?
SPF (Sender Policy Framework)
SPF tells receiving mail servers which IP addresses are authorized to send email for your domain. It helps prevent spammers from spoofing your domain.
DKIM (DomainKeys Identified Mail)
DKIM adds a digital signature to your emails that verifies the message hasn't been altered in transit and confirms it came from your domain.
DMARC
DMARC ties SPF and DKIM together and tells receiving servers what to do with emails that fail authentication. It also enables reporting.
Why Email Authentication Matters
Improve email deliverability and inbox placement
Protect your domain from spoofing and phishing
Build trust with email providers like Gmail and Outlook
Receive reports on email authentication failures
Meet requirements for bulk email senders (Google, Yahoo)
Reduce bounce rates and spam complaints
Need transactional email?
Stack0 Mail handles email authentication automatically. Just add your domain and we'll generate and verify all required DNS records for you.
Get started with Stack0 Mail →