julianatoren.nl

Checked 22 October 2026, 14:01 UTC · via 8.8.8.8
!Passed with warnings
25 passed 6 warnings 0 failed 1 info

SPF

pass

SPF record published

Found

Record
v=spf1 mx a include:_spf.smtp.computel.nl ip4:188.92.61.138 include:_senderspf.copernica.com a:smtp.dataweb.nl include:spf.julianatoren.hypernode.io include:spf.filtermail.eu ~all
DNS lookups
8 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 8 of 10 DNS lookups #2
    SPF record needs 8 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.julianatoren.nl)

Found

Record
v=DMARC1; p=quarantine; pct=10; rua=mailto:ict@julianatoren.nl
Found at
_dmarc.julianatoren.nl
TagValueMeaning
vDMARC1Version
pquarantinePolicy
pct10Percentage of mail the policy applies to
ruamailto:ict@julianatoren.nlAggregate report addresses

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 10% of mail
    DMARC policy only applies to 10% of failing mail (pct=10). Raise pct to 100 once you are confident in your setup.
    #18
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:ict@julianatoren.nl
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • ✓ Report addresses in own domain #29
    All report addresses are in your own organizational domain.

DKIM

warn

Selectors: dkim, email

Found

Selectors
dkim, email
_domainkey
NOERROR
SelectorKeyFlags
dkimRSA 1024 bitsh=sha256
emailRSA 1024 bits

Checks

  • ✓ Keys found: dkim, email #7
    DKIM keys found for this domain with selectors: dkim, email
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: dkim (1024 bits), email (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

warn

Not signed

Found

DNSKEY records
No (0)
DS at parent
No

Checks

  • !
    Not enabled
    DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8

MX

pass

2 mail servers

Found

PriorityHostRecordsReverse DNS
10mx10.filtermail.euA 185.165.242.43 A 93.94.228.134 AAAA 2a00:7c80:0:1eb::2 AAAA 2a01:518:1:42:8::134server1.filtermail.eu ✓ server5.filtermail.eu ✓ server1.filtermail.eu ✓ server5.filtermail.eu ✓
20mx20.filtermail.euA 93.94.228.134 AAAA 2a01:518:1:42:8::134server5.filtermail.eu ✓ server5.filtermail.eu ✓

Checks

  • ✓ 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 6 MX addresss have a PTR record that resolves back to them.

TLS

warn

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

Found

DANE (TLSA records)

MX hostTLSADNSSEC
mx10.filtermail.eu3 1 1 a2f63ccea17ebf23…Yes
mx20.filtermail.eu3 1 1 a2f63ccea17ebf23…Yes

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
  • ✓ DANE on all MX hosts #36
    All 2 MX hosts publish DNSSEC-validated TLSA records.

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