Mail domain report: mgslotenmaker.be

SPF

pass

SPF record published

Record: v=spf1 a mx ip4:185.173.21.101 ip6:2a0b:3100:20::66 include:mailfilter.myrootnet.nl ~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

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.

pass

2 mail servers

Priority	Host	Records	Reverse DNS
10	mailfilter01.myrootnet.nl	A 81.85.60.200 A 185.173.20.200 AAAA 2a0b:3100:200::200 AAAA 2a0b:3100:100::58:4	ams01.mailfilter.myrootnet.nl ✓ ede01.mailfilter.myrootnet.nl ✓ ams01.mailfilter.myrootnet.nl ✓ mailfilter01.myrootnet.nl ✓
20	mailfilter02.myrootnet.nl	A 185.173.21.200 A 81.85.60.200 AAAA 2a0b:3100:200::200 AAAA 2a0b:3100:100::58:5	ede02.mailfilter.myrootnet.nl ✓ ams01.mailfilter.myrootnet.nl ✓ ams01.mailfilter.myrootnet.nl ✓ mailfilter02.myrootnet.nl ✓

✓ 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
mailfilter01.myrootnet.nl	3 0 1 3b7b0e0d27892579…	Yes
mailfilter02.myrootnet.nl	3 0 1 3b7b0e0d27892579…	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