Mail domain report: hs-ansbach.de

SPF

pass

SPF record published

Record: v=spf1 mx a:bvbvxmail.bib-bvb.de ip4:141.39.207.198 include:_spf.mail.lrz.de ~all
DNS lookups: 3 of 10
Void lookups: 0 of 2

✓ No deprecated ptr mechanism #1

No ptr mechanism found in SPF record.
✓ 3 of 10 DNS lookups #2

SPF record needs 3 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.

fail

No DMARC record found

pass

Selectors: default

Selector	Key	Flags
default	RSA 2048 bits	h=sha256

✓ Keys found: default #7

DKIM keys found for this domain with selectors: default
✓ Strong keys #23

DKIM keys are strong enough: default: RSA 2048 bits.
✓ No problematic flags #24

No keys in test mode, revoked, or limited to SHA-1.

warn

Signed, DS published at parent

✓ 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 37h0m0s

DNSKEY signatures expire at 2026-10-23T11:26:02Z (in 37h0m0s). Check that re-signing works.

#21

pass

2 mail servers

Priority	Host	Records	Reverse DNS
10	postrelay1.lrz.de	A 129.187.255.160 A 129.187.254.158 AAAA 2001:4ca0:0:103::81bb:ffa0 AAAA 2001:4ca0:0:103:0:25:1:1	postrelay1b.lrz.de ✓ postrelay1a.lrz.de ✓ postrelay1.lrz.de ✓ postrelay1a.lrz.de ✓
10	postrelay2.lrz.de	A 129.187.255.161 A 129.187.254.159 AAAA 2001:4ca0:0:103::81bb:ffa1 AAAA 2001:4ca0:0:103:0:25:1:2	postrelay2b.lrz.de ✓ postrelay2a.lrz.de ✓ postrelay2b.lrz.de ✓ postrelay2a.lrz.de ✓

✓ 2 MX records #9

Found 2 MX records for this domain.
✓ All hosts resolve #10

All MX records resolve to valid IP addresses.
✓ All hosts have IPv6 #11

All MX records resolve to IPv6 addresses.
✓ Redundant MX hosts #12

Found 2 MX records, which provides redundancy for email delivery.
✓ At most 5 MX records #13

Found 2 MX records, which is within the recommended range (1-5).
✓ No localhost targets #14

No MX records pointing to localhost found.
✓ No private IP addresses #15

No MX records resolving to private IP addresses found.
✓ No CNAME targets #22

No MX records point to a CNAME.
✓ Reverse DNS confirmed #30

All 8 MX addresss have a PTR record that resolves back to them.

warn

no MTA-STS · no TLS-RPT · DANE on 2 of 2 MX hosts

MX host	TLSA	DNSSEC
postrelay1.lrz.de	3 1 1 3d805975a26979f6…	Yes
postrelay2.lrz.de	3 1 1 aa00d3fd8f372d50…	Yes

!

Not configured

MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.

#32
!

Not configured

MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".

#35
✓ DANE on all MX hosts #36

All 2 MX hosts publish DNSSEC-validated TLSA records.

info

No BIMI record