Mail domain report: trox.de

SPF

pass

SPF record published

Found

Record: v=spf1 include:_netblocks.mimecast.com include:spf.protection.outlook.com ip4:145.253.245.64/29 ip4:185.188.109.128/28 ip4:213.23.82.32/28 ip4:213.23.90.192/27 ip4:93.191.162.0/24 ip4:93.191.164.0/24 -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.trox.de)

Found

Record: v=DMARC1; p=quarantine; rua=mailto:576bb75ea25f850@rep.dmarcanalyzer.com; ruf=mailto:576bb75ea25f850@for.dmarcanalyzer.com; fo=1;
Found at: _dmarc.trox.de
External report address: mailto:576bb75ea25f850@rep.dmarcanalyzer.com (authorized)
External report address: mailto:576bb75ea25f850@for.dmarcanalyzer.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
rua	mailto:576bb75ea25f850@rep.dmarcanalyzer.com	Aggregate report addresses
ruf	mailto:576bb75ea25f850@for.dmarcanalyzer.com	Failure report addresses
fo	1	Failure 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:576bb75ea25f850@rep.dmarcanalyzer.com
✓ 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

No keys found under the checked selectors

Found

Selectors: None found
_domainkey: NOERROR

Checks

!

No key under common selectors

The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.

#7

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

2 mail servers

Found

Priority	Host	Records	Reverse DNS
10	de-smtp-inbound-1.mimecast.com	A 194.104.110.22 A 194.104.108.22	de-smtp-inbound-2.mimecast.com ✓ de-smtp-inbound-2.mimecast.com ✓
20	de-smtp-inbound-2.mimecast.com	A 194.104.108.22 A 194.104.110.22	de-smtp-inbound-2.mimecast.com ✓ de-smtp-inbound-1.mimecast.com ✓

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: de-smtp-inbound-1.mimecast.com, de-smtp-inbound-2.mimecast.com

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

TLS

warn

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

Found

MTA-STS record: v=STSv1; id=2024dec30cr1234
Policy URL: https://mta-sts.trox.de/.well-known/mta-sts.txt
Mode: enforce
Allowed MX: de-smtp-inbound-1.mimecast.com, de-smtp-inbound-2.mimecast.com
Max age: 86400 seconds

DANE (TLSA records)

MX host	TLSA	DNSSEC
de-smtp-inbound-1.mimecast.com	none	-
de-smtp-inbound-2.mimecast.com	none	-

Checks

✓ Record published #32

MTA-STS record found with id 2024dec30cr1234.
✓ Policy enforced #33

The MTA-STS policy is enforced and cached for 24h0m0s.
✓ All MX hosts covered #34

Every MX host matches an mx: line of the MTA-STS policy.
!

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
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