Mail domain report: rockabilly.nl

SPF

pass

SPF record published

✓ No deprecated ptr mechanism #1

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

SPF record needs 1 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

warn

No keys found under the checked selectors

pass

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 valid until 2026-11-05 #21

DNSKEY signatures are valid until 2026-11-05T00:00:00Z.

warn

1 mail server

Priority	Host	Records	Reverse DNS
10	mx.bhosted.nl	A 94.124.121.32 A 94.124.121.12 A 94.124.121.10 AAAA 2a02:9e0:8000::10 AAAA 2a02:9e0:8000::32 AAAA 2a02:9e0:8000::12	mx03.bhosted.nl ✓ mx02.bhosted.nl ✓ mx01.bhosted.nl ✓ mx01.bhosted.nl ✓ mx03.bhosted.nl ✓ mx02.bhosted.nl ✓

✓ 1 MX record #9

Found 1 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.
!

Single MX host, no backup

Only one MX record found. For better email reliability, consider adding at least one backup MX server.

#12
✓ At most 5 MX records #13

Found 1 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 6 MX addresss have a PTR record that resolves back to them.

warn

no MTA-STS · no TLS-RPT · DANE on 1 of 1 MX hosts

MX host	TLSA	DNSSEC
mx.bhosted.nl	3 1 1 d134e2d232b61ac9… 3 1 1 43e936a2116f0191…	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 1 MX host publish DNSSEC-validated TLSA records.

info

No BIMI record