inxmail.de

Checked 21 October 2026, 23:00 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 5 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
ICANN policies apply
no

Checks

  • i
    .de is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.
    #1
  • ✓ TLD delegated and signed #2
    .de is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

warn

ns1.inxmail.de, ns2.inxmail.de, ns3.inxmail.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.inxmail.de, ns2.inxmail.de, ns3.inxmail.de
NS in the zone
ns1.inxmail.de, ns2.inxmail.de, ns3.inxmail.de
NameserverAddressesNetwork (AS)Glue
ns1.inxmail.de91.92.119.174AS61098 exoscale - Akenes SA, CH91.92.119.174
ns2.inxmail.de213.164.80.158AS13054 BADENIT - badenIT GmbH, DE213.164.80.158
ns3.inxmail.de213.164.80.162AS13054 BADENIT - badenIT GmbH, DE213.164.80.162

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.inxmail.de, ns2.inxmail.de, ns3.inxmail.de.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.inxmail.de, ns2.inxmail.de, ns3.inxmail.de.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS13054 (BADENIT - badenIT GmbH, DE): 2 addresses; AS61098 (exoscale - Akenes SA, CH): 1 address.
  • i
    All nameserver names under .de
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

warn

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.inxmail.de 91.92.119.174NOERROR, 4 ms, authoritativenoyes / yesrefused9.20.29-1~deb13u1-Debian
ns2.inxmail.de 213.164.80.158NOERROR, 8 ms, authoritativenoyes / yesrefused9.20.23-1~deb13u1-Debian
ns3.inxmail.de 213.164.80.162NOERROR, 10 ms, authoritativenoyes / yesrefused9.20.23-1~deb13u1-Debian

Checks

  • ✓ All respond #14
    All 3 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.inxmail.de: "9.20.29-1~deb13u1-Debian"; ns2.inxmail.de: "9.20.23-1~deb13u1-Debian"; ns3.inxmail.de: "9.20.23-1~deb13u1-Debian". Hide or replace the version string.
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

info

serial 2026092801 · primary bit-network-01.dmz.inxmail.de

Found

Primary (MNAME)
bit-network-01.dmz.inxmail.de
Contact (RNAME)
hostmaster.inxmail.de
Serial
2026092801
Refresh / retry
3600 s / 1200 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.inxmail.de (91.92.119.174)2026092801
ns2.inxmail.de (213.164.80.158)2026092801
ns3.inxmail.de (213.164.80.162)2026092801

Checks

  • ✓ Serial 2026092801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 20m, expire 7d, negative TTL 1h.
  • i
    Hidden master
    The primary nameserver bit-network-01.dmz.inxmail.de is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact hostmaster@inxmail.de #25
    The SOA RNAME hostmaster.inxmail.de means hostmaster@inxmail.de.
  • ✓ Date-based serial #26
    The serial 2026092801 follows the YYYYMMDDnn convention (2026-09-28).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

14 records at the apex

Found

Read from
91.92.119.174:53
TypeValueTTL
SOAbit-network-01.dmz.inxmail.de. hostmaster.inxmail.de. 2026092801 3600 1200 604800 360086400
NSns3.inxmail.de.3600
NSns2.inxmail.de.3600
NSns1.inxmail.de.3600
A185.237.66.83600
MX0 inxmail-de.mail.protection.outlook.com.3600
TXT"logmein-verification-code=326cf641-9a58-4028-af85-f3537ef5ff0e"3600
TXT"mongodb-site-verification=LTeGo23gpa3LOgcaYr32VZjMGFiG865g"3600
TXT"adobe-idp-site-verification=d9f00e7cd57c9696e5ceedd25068e4080eb7d03ae8ed05e7432a3f5f7db08e63"3600
TXT"kAA+oHjRKw9C77nHejXrl5M2aTa3nyXFpNTZC5QiF5xpvv0BpHq05INCl+jn96CL5VZNGSoyxmY2HowvuO9aZA=="3600
TXT"MS=ms67819224"3600
TXT"openai-domain-verification=dv-xTULAYTrZFysdavvgjJapuXT"3600
TXT"apple-domain-verification=pcRjJzyTuiJIIFbw"3600
TXT"v=spf1 include:inxserver.com include:bo-it.inxmail.de include:spf.emailsignatures365.com -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35