🔐 Email DNS Authentication Checker

Verify SPF, DKIM, DMARC and MX records for any domain. Required for inbox placement since the Gmail/Yahoo 2024 sender requirements.

📌 Why these records matter

SPF: lists which servers can send for your domain. Missing = anyone can spoof you.
DKIM: cryptographic signature proving email came from your domain.
DMARC: policy telling receiving servers what to do when SPF/DKIM fail.
MX: tells the internet where to deliver email sent TO your domain.

Gmail and Yahoo require all three (SPF/DKIM/DMARC) for bulk senders since 2024. Missing any = your campaigns may go straight to spam.