oisd.nl

Checked 22 October 2026, 15:01 UTC · via 8.8.8.8
!Passed with warnings
27 passed 5 warnings 0 failed 1 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:spf.messagingengine.com -all
DNS lookups
1 of 10
Void lookups
0 of 2

Checks

  • ✓ 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.

DMARC

warn

p=reject (_dmarc.oisd.nl)

Found

Record
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; pct=100
Found at
_dmarc.oisd.nl
TagValueMeaning
vDMARC1Version
prejectPolicy
sprejectSubdomain policy
pct100Percentage of mail the policy applies to
adkimsDKIM alignment (r = relaxed, s = strict)
aspfsSPF alignment (r = relaxed, s = strict)

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.
  • !
    No aggregate reports (rua)
    DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...
    #19
  • ✓ Subdomain policy: reject #20
    Subdomains are covered by policy 'reject'.

DKIM

warn

No keys found under the checked selectors

Found

Selectors
None found
_domainkey
NOERROR

Checks

  • !
    No key under common selectors
    The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7

DNSSEC

pass

Signed, DS published at parent

Found

DNSKEY records
Yes (3)
DS at parent
Yes
Algorithms
RSASHA256 (8)
Key tags
27184, 23854, 4426
Signatures valid until
20 November 2026, 16:31 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 valid until 2026-11-20 #21
    DNSKEY signatures are valid until 2026-11-20T16:31:12Z.

MX

warn

2 mail servers

Found

PriorityHostRecordsReverse DNS
10eu1-smtp.messagingengine.comA 204.75.18.217 A 204.75.18.216ams-mx-02.messagingengine.com ✓ ams-mx-01.messagingengine.com ✓
20eu2-smtp.messagingengine.comA 103.168.172.217 A 103.168.172.219 A 103.168.172.220 A 103.168.172.221 A 103.168.172.216 A 103.168.172.218 A 103.168.172.223 A 103.168.172.222phl-mx-02.messagingengine.com ✓ phl-mx-04.messagingengine.com ✓ phl-mx-05.messagingengine.com ✓ phl-mx-06.messagingengine.com ✓ phl-mx-01.messagingengine.com ✓ phl-mx-03.messagingengine.com ✓ phl-mx-08.messagingengine.com ✓ phl-mx-07.messagingengine.com ✓

Checks

  • ✓ 2 MX records #9
    Found 2 MX records for this domain.
  • ✓ All hosts resolve #10
    All MX records resolve to valid IP addresses.
  • !
    Hosts without IPv6
    The following MX hosts could not be resolved to IPv6 addresses: eu1-smtp.messagingengine.com, eu2-smtp.messagingengine.com
    #11
  • ✓ 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 10 MX addresss have a PTR record that resolves back to them.

TLS

warn

MTA-STS enforce · no TLS-RPT · DANE on 0 of 2 MX hosts

Found

MTA-STS record
v=STSv1; id=20261015
Policy URL
https://mta-sts.oisd.nl/.well-known/mta-sts.txt
Mode
enforce
Allowed MX
eu1-smtp.messagingengine.com, eu2-smtp.messagingengine.com
Max age
86400 seconds

DANE (TLSA records)

MX hostTLSADNSSEC
eu1-smtp.messagingengine.comnone-
eu2-smtp.messagingengine.comnone-

Checks

  • ✓ Record published #32
    MTA-STS record found with id 20261015.
  • ✓ Policy enforced #33
    The MTA-STS policy is enforced and cached for 24h0m0s.
  • ✓ All MX hosts covered #34
    Every MX host matches an mx: line of the MTA-STS policy.
  • !
    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
  • i
    Not used
    No MX host publishes TLSA records. DANE lets senders verify your mail server's certificate through DNSSEC; it requires DNSSEC on the MX host's zone.
    #36

BIMI

warn

https://oisd.nl/sjhgvr.svg

Found

Record
v=BIMI1; l=https://oisd.nl/sjhgvr.svg; a=
Found at
default._bimi.oisd.nl
Logo
https://oisd.nl/sjhgvr.svg

Checks

  • !
    No certificate (a=)
    The logo is published without a Verified Mark Certificate. Gmail and Apple Mail only show BIMI logos with a VMC or CMC; Yahoo shows it without one.
    #38
  • ✓ DMARC meets BIMI requirements #39
    DMARC is enforced on all mail, as BIMI requires.