Check SPF, DKIM, DMARC and MX for any domain — and see exactly what to fix so your email isn’t spoofed or sent to spam.
The part after @ in your email address, e.g. example.com.
We read the SPF, DKIM, DMARC, MX and MTA-STS records.
Each row says what it does and the exact record to add or change.
Together they prove mail really comes from you. Gmail and Yahoo now require them for anyone sending in bulk, and without them your mail is easier to spoof and more likely to land in spam.
DMARC is only watching: receivers send you reports but still deliver spoofed mail. Move to quarantine, then reject, once the reports show only your own servers.
DKIM keys live under a selector name that only your mail provider knows. Enter it in the selector box (for example google, selector1 or k1).