IPv6 Addresses
efm.de. 900 IN AAAA 2001:67C:2DC4:3:0:0:0:198
Name Servers
efm.de. 900 IN NS ns1.efm.de. efm.de. 900 IN NS nsb1.schlundtech.de. efm.de. 900 IN NS nsc1.schlundtech.de. efm.de. 900 IN NS nsd1.schlundtech.de.
Mail Servers
efm.de. 900 IN MX 10 mx4.efm.de. efm.de. 900 IN MX 20 mx5.efm.de.
SOA Details
efm.de. 900 IN SOA ns1.efm.de. hostmaster.efm.de. 2026110301 21600 7200 1209600 900
Certificate Authority Authorization
No CAA records were returned at this registrable domain name. With no CAA policy, any public certificate authority (CA) may issue TLS certificates for names under this zone unless a parent publishes CAA; add issue / issuewild / iodef records to restrict issuance.
DMARC
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
Forensic (per-failure) reports. Often omitted for privacy or volume.
efm.de. 900 IN DMARC v=DMARC1; p=reject; sp=none; rua=mailto:[email protected]
DKIM
No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.
SPF (Sender Policy Framework)
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | ip4 |
|
||
| + Pass | ip6 |
|
||
| ~ Softfail | all |
—
|
|
efm.de. 900 IN TXT "v=spf1 ip4:195.190.148.0/24 ip6:2001:67c:2dc4::/48 ~all"
MTA-STS
This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).