Mail domain report: heinze.de

SPF

pass

SPF record published

Found

Record: v=spf1 include:spf.mailjet.com include:emarsys.net include:emsmtp.com include:eu-sender.zohobooks.com include:spf.protection.outlook.com a:dg-smg4.docunet.info a:dg-smg4-b.docunet.info ip4:20.79.220.33 ip4:20.79.222.204 ip4:13.94.95.171 ip4:137.116.240.241 mx -all
DNS lookups: 10 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

No ptr mechanism found in SPF record.
✓ 10 of 10 DNS lookups #2

SPF record needs 10 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.heinze.de)

Found

Record: v=DMARC1; p=quarantine; adkim=s; aspf=s; rua=mailto:infopro.rua@emailsecurity.merox.io,mailto:af2f3b1163@rua.easydmarc.eu,mailto:dmarc@heinze.de; ruf=mailto:af2f3b1163@ruf.easydmarc.eu,mailto:dmarc@heinze.de; fo=1; ri=3600;
Found at: _dmarc.heinze.de
External report address: mailto:infopro.rua@emailsecurity.merox.io (authorized)
External report address: mailto:af2f3b1163@rua.easydmarc.eu (authorized)
External report address: mailto:af2f3b1163@ruf.easydmarc.eu (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
rua	mailto:infopro.rua@emailsecurity.merox.io,mailto:af2f3b1163@rua.easydmarc.eu,mailto:dmarc@heinze.de	Aggregate report addresses
ruf	mailto:af2f3b1163@ruf.easydmarc.eu,mailto:dmarc@heinze.de	Failure report addresses
adkim	s	DKIM alignment (r = relaxed, s = strict)
aspf	s	SPF alignment (r = relaxed, s = strict)
fo	1	Failure reporting options
ri	3600	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:infopro.rua@emailsecurity.merox.io, mailto:af2f3b1163@rua.easydmarc.eu, mailto:dmarc@heinze.de
✓ 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

pass

Selectors: selector1, selector2

Found

Selectors: selector1, selector2
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 2048 bits
selector2	RSA 2048 bits

Checks

✓ Keys found: selector1, selector2 #7

DKIM keys found for this domain with selectors: selector1, selector2
✓ Strong keys #23

DKIM keys are strong enough: selector1: RSA 2048 bits; selector2: RSA 2048 bits.
✓ 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

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
0	heinze-de.mail.protection.outlook.com	A 52.101.166.1 A 52.101.164.0 A 52.101.166.0 A 52.101.166.2 AAAA 2a01:111:f403:ca1e:: AAAA 2a01:111:f403:ca25::2 AAAA 2a01:111:f403:ca25::1 AAAA 2a01:111:f403:ca25::	mail-pr0p264cu01301.inbound.protection.outlook.com ✓ mail-mrzp264cu00100.inbound.protection.outlook.com ✓ mail-pa5p264cu00200.inbound.protection.outlook.com ✓ mail-paup264cu00202.inbound.protection.outlook.com ✓ mail-mrzp264cu00100.inbound.protection.outlook.com ✓ mail-paup264cu00202.inbound.protection.outlook.com ✓ mail-pr0p264cu01301.inbound.protection.outlook.com ✓ mail-pa5p264cu00200.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
heinze-de.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