Mail domain report: operaballet.nl

SPF

pass

SPF record published

Found

Record: v=spf1 mx ip4:93.46.203.194/28 include:spf.afas.online ip4:46.31.48.0/21 ip4:145.102.244.128/27 ip4:46.255.106.61 ip4:185.113.197.196 ip4:185.113.196.231 include:spf.protection.outlook.com include:spf.topdesk.net a:malengo.exception.mx ip4:62.13.128.0/24 ip4:62.13.129.128/25 ip4:62.13.136.0/22 ip4:62.13.140.0/22 ip4:62.13.144.0/22 ip4:62.13.148.0/23 ip4:62.13.150.0/23 ip4:62.13.152.0/23 ip4:82.201.60.150 ip4:81.24.63.0/27 ip4:185.89.7.135 include:_spf.salesforce.com ip4:95.215.184.0/21 ip6:2a00:51c0:101:1100::b9ce:e930 ip6:2a00:51c0:101:1100::b9ce:e92e ip6:2a00:51c0::5fd7:bd14 ip6:2a00:51c0::5fd7:b9a0 ip4:185.206.233.48 ip4:185.206.233.46 ip4:185.31.247.142 ip4:185.31.247.141 ip4:95.215.184.0 ip4:185.31.247.145 include:_spf.peppered.net ip4:178.22.63.140 ip6:2a00:1e28:3:4224::1/64 ip4:178.22.59.170 ip6:2a00:1e28:3:4259::1 ~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.operaballet.nl)

Found

Record: v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email; fo=1; adkim=r; aspf=r; pct=100; rf=afrf; ri=86400; sp=quarantine
Found at: _dmarc.operaballet.nl
External report address: mailto:dmarc_agg@vali.email (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
sp	quarantine	Subdomain policy
pct	100	Percentage of mail the policy applies to
rua	mailto:dmarc_agg@vali.email	Aggregate report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)
fo	1	Failure reporting options
rf	afrf	Failure report format
ri	86400	Report interval (seconds)

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:dmarc_agg@vali.email
✓ Subdomain policy: quarantine #20

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

Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: selector1

Found

Selectors: selector1
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 1024 bits

Checks

✓ Keys found: selector1 #7

DKIM keys found for this domain with selectors: selector1
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: selector1 (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: RSASHA256 (8)
Key tags: 28562, 35425
Signatures valid until: 28 January 2027, 07:35 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 2027-01-28 #21

DNSKEY signatures are valid until 2027-01-28T07:35:02Z.

MX

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
0	operaballet-nl.mail.protection.outlook.com	A 52.101.73.155 A 52.101.91.153 A 52.101.103.137 A 52.101.209.31 AAAA 2a01:111:f403:ca04::9 AAAA 2a01:111:f403:ca38::8 AAAA 2a01:111:f403:ca48::e AAAA 2a01:111:f403:ca04::10	mail-am7pr02cu00203.inbound.protection.outlook.com ✓ mail-matpr04cu00101.inbound.protection.outlook.com ✓ mail-miypr02cu00101.inbound.protection.outlook.com ✓ mail-cpjpr05cu00207.inbound.protection.outlook.com ✓ mail-db7pr03cu00601.inbound.protection.outlook.com ✓ mail-wa4pr04cu00100.inbound.protection.outlook.com ✓ mail-miypr03cu00206.inbound.protection.outlook.com ✓ mail-dbapr03cu00100.inbound.protection.outlook.com ✓

Checks

✓ 1 MX record #9

Found 1 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.
!

Single MX host, no backup

Only one MX record found. For better email reliability, consider adding at least one backup MX server.

#12
✓ At most 5 MX records #13

Found 1 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.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 1 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
operaballet-nl.mail.protection.outlook.com	none	-

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

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