olvg.nl

p=quarantine (_dmarc.olvg.nl)

Found

Record

v=DMARC1;p=quarantine;rua=mailto:gqhwuuo1@ag.eu.dmarcadvisor.com,mailto:dmarc@olvg.nl;ruf=mailto:dmarc@olvg.nl;fo=1

Found at

_dmarc.olvg.nl

External report address

mailto:gqhwuuo1@ag.eu.dmarcadvisor.com (authorized)

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:gqhwuuo1@ag.eu.dmarcadvisor.com, mailto:dmarc@olvg.nl
• ✓ Subdomain policy: quarantine #20

  Subdomains are covered by policy 'quarantine'.
• ✓ External report addresses authorized #29

  Report addresses in other domains have published their authorization.

Selectors: selector1, selector2

Found

Selectors

selector1, selector2

_domainkey

NOERROR

Checks

• ✓ Keys found: selector1, selector2 #7

  DKIM keys found for this domain with selectors: selector1, selector2
• !

  1024-bit DKIM key

  1024-bit RSA keys are the minimum and are considered weak today: selector1 (1024 bits), selector2 (1024 bits). Rotate to a 2048-bit key.

  #23
• ✓ No problematic flags #24

  No keys in test mode, revoked, or limited to SHA-1.

Signed, DS published at parent

Found

DNSKEY records

Yes (4)

DS at parent

Yes

Algorithms

RSASHA256 (8)

Key tags

32450, 62769, 892, 59985

Signatures valid until

26 October 2026, 11:30 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 expire in 92h0m0s

  DNSKEY signatures expire at 2026-10-26T11:30:08Z (in 92h0m0s). Check that re-signing works.

  #21

2 mail servers

Found

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: mx1.olvg.nl, mx2.olvg.nl

  #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 2 MX addresss have a PTR record that resolves back to them.

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

Found

DANE (TLSA records)

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
• i

  Not configured

  TLS-RPT lets senders report TLS delivery problems to you. It is most useful together with MTA-STS or DANE.

  #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