Here's how 2ay.de protects its email
Checked August 02, 2026 03:39
Core protections
SPF
ProtectedA strict SPF policy is in place — servers not on the approved list are rejected outright.
Show raw DNS record
v=spf1 -all
DKIM
ProtectedA DKIM signing key was found — outgoing mail can be cryptographically verified as genuinely from this domain.
Show raw DNS record
default,google,selector1,selector2,k1,s1,dkim,mail,smtp
DMARC
Not configuredNo DMARC record was found. There's no policy telling mail providers what to do with spoofed mail claiming to be from this domain.
Show raw DNS record
No record found.
Advanced protections
| Protection | Status |
|---|---|
| MTA-STS | Present |
| TLS-RPT | Present |
| DNSSEC | Not found |
| BIMI | Not found |
| CAA | Not found |
Recommendation
What we'd fix first for 2ay.de
- DMARC isn't set to reject failing mail, so spoofed messages may still reach an inbox.
Want this level of protection for your own attachments?
Adlerwacht adds passkey-verified, end-to-end secured delivery on top of whatever your domain already has configured.
What do these mean?
What is SPF?
SPF (Sender Policy Framework) is a DNS record listing which mail servers are allowed to send email for a domain. Without it, anyone can forge the "From" address.
What is DKIM?
DKIM (DomainKeys Identified Mail) cryptographically signs outgoing email, letting the receiving server verify it wasn't altered in transit and really came from this domain.
What is DMARC?
DMARC tells receiving mail servers what to do with messages that fail SPF or DKIM checks — ignore them, quarantine them, or reject them outright.
What is MTA-STS?
MTA-STS forces incoming mail to this domain to travel over an encrypted, certificate-verified connection, closing off a common way attackers intercept mail in transit.
What is CAA?
A CAA record lists which Certificate Authorities are allowed to issue TLS certificates for a domain, making it harder for an attacker to get a fraudulent certificate issued elsewhere.