luftwaffe.de

Checked 21 October 2026, 23:20 UTC · via 8.8.8.8
!Passed with warnings
18 passed 1 warning 0 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 -all
DNS lookups
0 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 0 of 10 DNS lookups #2
    SPF record needs 0 DNS lookups (limit is 10).
  • ✓ Ends with -all #3
    SPF record properly uses -all to restrict unauthorized senders.
  • ✓ Record published #6
    SPF record exists for this domain.
  • ✓ Single record #16
    Exactly one SPF record is published.
  • ✓ Valid syntax #25
    All SPF mechanisms and modifiers are valid.
  • ✓ No void lookups #26
    All include/redirect targets exist.
  • ✓ No overly broad IP ranges #27
    All ip4/ip6 ranges are narrow enough.

DMARC

pass

p=reject (_dmarc.luftwaffe.de)

Found

Record
v=DMARC1; p=reject; sp=reject; np=reject; pct=100; t=n; rua=mailto:postmaster-dmz.report@bundeswehr.org; ruf=mailto:postmaster-dmz.forensisc@bundeswehr.org; ri=604800; fo=0; rf=afrf; adkim=s; aspf=s;
Found at
_dmarc.luftwaffe.de
External report address
mailto:postmaster-dmz.report@bundeswehr.org (authorized)
External report address
mailto:postmaster-dmz.forensisc@bundeswehr.org (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
sprejectSubdomain policy
pct100Percentage of mail the policy applies to
ruamailto:postmaster-dmz.report@bundeswehr.orgAggregate report addresses
rufmailto:postmaster-dmz.forensisc@bundeswehr.orgFailure report addresses
adkimsDKIM alignment (r = relaxed, s = strict)
aspfsSPF alignment (r = relaxed, s = strict)
fo0Failure reporting options
rfafrfFailure report format
ri604800Report interval (seconds)
npreject
tn

Checks

  • ✓ Policy: reject #4
    DMARC policy is set to 'reject', which provides the strongest protection against email spoofing.
  • ✓ Record published #5
    DMARC record exists for this domain.
  • ✓ Valid syntax #17
    DMARC record syntax is valid.
  • ✓ Applies to 100% of mail #18
    DMARC policy applies to all failing mail.
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:postmaster-dmz.report@bundeswehr.org
  • ✓ Subdomain policy: reject #20
    Subdomains are covered by policy 'reject'.
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

info

Selectors: default, dkim, mail, email, k1, selector1, selector2, google, zoho, mx, key, mta, pm, dkim-smtp, s1, s2

Found

Selectors
default, dkim, mail, email, k1, selector1, selector2, google, zoho, mx, key, mta, pm, dkim-smtp, s1, s2
_domainkey
NOERROR
SelectorKeyFlags
defaultrevoked
dkimrevoked
mailrevoked
emailrevoked
k1revoked
selector1revoked
selector2revoked
googlerevoked
zohorevoked
mxrevoked
keyrevoked
mtarevoked
pmrevoked
dkim-smtprevoked
s1revoked
s2revoked

Checks

  • ✓ Keys found: default, dkim, mail, email, k1, selector1, selector2, google, zoho, mx, key, mta, pm, dkim-smtp, s1, s2 #7
    DKIM keys found for this domain with selectors: default, dkim, mail, email, k1, selector1, selector2, google, zoho, mx, key, mta, pm, dkim-smtp, s1, s2
  • i
    All keys revoked
    All found keys are revoked (empty p=): default, dkim, mail, email, k1, selector1, selector2, google, zoho, mx, key, mta, pm, dkim-smtp, s1, s2. That is fine if this domain no longer signs mail.
    #24

DNSSEC

warn

Signed, DS published at parent

Found

DNSKEY records
Yes (4)
DS at parent
Yes
Algorithms
RSASHA256 (8)
Key tags
18754, 57174, 55592, 44704
Signatures valid until
25 October 2026, 20:18 UTC

Checks

  • ✓ Signed, DS published at parent #8
    DNSSEC is enabled for this domain (DNSKEY and DS present), providing additional security for DNS lookups.
  • !
    Signatures expire in 93h0m0s
    DNSKEY signatures expire at 2026-10-25T20:18:23Z (in 93h0m0s). Check that re-signing works.
    #21

MX

info

Null MX: domain accepts no mail

Checks

  • i
    Null MX: accepts no mail
    Domain publishes a null MX (RFC 7505): it explicitly accepts no email.
    #9
  • ✓ Locked down against spoofing #28
    The domain publishes a null MX and publishes SPF "v=spf1 -all" and DMARC p=reject, so nobody can send mail as this domain.

BIMI

info

No BIMI record

Checks

  • i
    Not configured
    BIMI shows your logo next to your mail in supporting mail clients. It requires DMARC enforcement.
    #38