Email Security

SPF, DKIM, DMARC, BIMI and email authentication analysis
Score
90/100
SPF
Valid
DKIM
Key present
DMARC
REJECT
Findings
8

DKIM

Selectors Found: 3
Key valid selector1 (Microsoft 365) 1024-bit (weak)
Key valid simplycom1 (Simply.com) 1024-bit (weak)
Key valid simplycom2 (Simply.com) 2048-bit

DKIM signs outgoing mail with a private key and publishes the matching public key in DNS. This check validates discovered DNS key records; it does not verify a live email message signature.