isgeschiedenis.nl

Checked 21 October 2026, 21:22 UTC · via 8.8.8.8
!Passed with warnings
25 passed 7 warnings 0 failed 1 info

SPF

pass

SPF record published

Found

Record
v=spf1 mx a ip4:185.46.64.190 ip4:185.110.175.203 ip4:185.110.174.198 ip4:89.188.15.163 include:amazonses.com ~all
DNS lookups
3 of 10
Void lookups
0 of 2

Checks

  • ✓ 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.

DMARC

warn

p=quarantine (_dmarc.isgeschiedenis.nl)

Found

Record
v=DMARC1; p=quarantine; rua=mailto:webmaster@virtumedia.nl; fo=1; adkim=s; aspf=s;
Found at
_dmarc.isgeschiedenis.nl
External report address
mailto:webmaster@virtumedia.nl (not authorized)
TagValueMeaning
vDMARC1Version
pquarantinePolicy
ruamailto:webmaster@virtumedia.nlAggregate report addresses
adkimsDKIM alignment (r = relaxed, s = strict)
aspfsSPF alignment (r = relaxed, s = strict)
fo1Failure reporting options

Checks

  • !
    Policy: quarantine
    DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.
    #4
  • ✓ 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:webmaster@virtumedia.nl
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • !
    Report address not authorized
    These report addresses are in another domain that has not agreed to receive your reports, so receivers will not send them: mailto:webmaster@virtumedia.nl (needs isgeschiedenis.nl._report._dmarc.virtumedia.nl). Ask the report provider to publish the record, or check the address.
    #29

DKIM

warn

Selectors: default

Found

Selectors
default
_domainkey
NOERROR
SelectorKeyFlags
defaultRSA 1024 bits

Checks

  • ✓ Keys found: default #7
    DKIM keys found for this domain with selectors: default
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: default (1024 bits). Rotate to a 2048-bit key.
    #23
  • ✓ No problematic flags #24
    No keys in test mode, revoked, or limited to SHA-1.

DNSSEC

pass

Signed, DS published at parent

Found

DNSKEY records
Yes (2)
DS at parent
Yes
Algorithms
ECDSAP256SHA256 (13)
Key tags
43807, 64720
Signatures valid until
29 October 2026, 00:00 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 2026-10-29 #21
    DNSKEY signatures are valid until 2026-10-29T00:00:00Z.

MX

warn

4 mail servers

Found

PriorityHostRecordsReverse DNS
10mx.spamexperts.comA 154.59.104.23 AAAA 2001:978:2:7::162:100fe2-r3-in.ams14.l.antispamcloud.com ✓ fe1-r3-in.fra02.l.antispamcloud.com ✓
20fallbackmx.spamexperts.euA 149.13.75.27 A 154.59.193.124 A 154.59.104.23 AAAA 2001:978:2:6::f:124 AAAA 2001:978:2:2c::137:100 AAAA 2001:978:2:7::162:100fe1-r3-in.fra02.l.antispamcloud.com ✓ fe3-r3-in.du01.l.antispamcloud.com ✓ fe2-r3-in.ams14.l.antispamcloud.com ✓ fe3-r3-in.du01.l.antispamcloud.com ✓ fe2-r3-in.ams14.l.antispamcloud.com ✓ fe1-r3-in.fra02.l.antispamcloud.com ✓
20relay.transip.nlA 149.210.149.12 A 149.210.149.29 AAAA 2a01:7c8:7c8::29 AAAA 2a01:7c8:7c8::12relay0.transip.nl ✓ relay1.transip.nl ✓ relay1.transip.nl ✓ relay0.transip.nl ✓
30lastmx.spamexperts.netA 38.71.16.244 A 38.89.254.156 A 154.59.104.23 A 149.13.75.27 AAAA 2001:550:2:61::2fc:100 AAAA 2001:978:2:2c::137:100 AAAA 2001:550:2:3::62:100 AAAA 2001:978:2:7::162:100fe2-r2-in.la10.l.antispamcloud.com ✓ fe1-r2-in.ch03.l.antispamcloud.com ✓ fe2-r3-in.ams14.l.antispamcloud.com ✓ fe1-r3-in.fra02.l.antispamcloud.com ✓ no PTR fe2-r3-in.ams14.l.antispamcloud.com ✓ fe2-r2-in.la10.l.antispamcloud.com ✓ fe1-r3-in.fra02.l.antispamcloud.com ✓

Checks

  • ✓ 4 MX records #9
    Found 4 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 4 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 4 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.
  • !
    Addresses without reverse DNS
    These MX addresses have no PTR record, which many receivers treat as a spam signal: 2001:550:2:61::2fc:100 (lastmx.spamexperts.net). Ask your hosting provider to set one.
    #30

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 1 of 4 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
mx.spamexperts.comnone-
fallbackmx.spamexperts.eunone-
relay.transip.nl3 1 1 1326b5674d6cbd3f… 3 1 1 4be19b4f9ff6b128… 3 1 1 a83c48417a6006de… 3 1 1 80fd782020c5598d…Yes
lastmx.spamexperts.netnone-

Checks

  • !
    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
  • !
    Not all MX hosts use DANE
    These MX hosts publish no TLSA records, so mail to them is not protected by DANE: mx.spamexperts.com, fallbackmx.spamexperts.eu, lastmx.spamexperts.net.
    #36

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