Mail domain report: tuvsud.com

SPF

pass

SPF record published

Found

Record: v=spf1 include:spf.protection.outlook.com include:spfc.tuvsud.com include:spfn.tuvsud.com ip4:52.57.65.8 ip4:195.154.139.184 ip4:83.167.51.229 ip4:67.69.227.51 ip4:185.14.244.9 ip4:185.14.246.9 ip4:185.14.245.9 ip4:185.14.247.9 ip4:185.168.122.75 ip4:185.168.122.76 ip4:108.143.211.207 ip4:133.186.50.168 ip4:18.197.43.76 include:spf.mailjet.com include:spf.sendinblue.com include:spf.tuevsurvey.com -all
DNS lookups: 6 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 6 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.tuvsud.com)

Found

Record: v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc_agg@vali.email,mailto:re+mxf2d8squ0x@dmarc.postmarkapp.com;
Found at: _dmarc.tuvsud.com
External report address: mailto:dmarc_agg@vali.email (authorized)
External report address: mailto:re+mxf2d8squ0x@dmarc.postmarkapp.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:dmarc_agg@vali.email,mailto:re+mxf2d8squ0x@dmarc.postmarkapp.com	Aggregate 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 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, mailto:re+mxf2d8squ0x@dmarc.postmarkapp.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

Selectors: selector1, selector2, google, s1, s2

Found

Selectors: selector1, selector2, google, s1, s2
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 2048 bits
selector2	RSA 2048 bits
google	RSA public key could not be parsed
s1	RSA 2048 bits
s2	RSA 1024 bits

Checks

✓ Keys found: selector1, selector2, google, s1, s2 #7

DKIM keys found for this domain with selectors: selector1, selector2, google, s1, s2
!

Unreadable DKIM key

These keys could not be parsed, so signatures made with them will fail: google (RSA public key could not be parsed).

#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

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
20	tuvsud-com.mail.protection.outlook.com	A 52.101.73.153 A 52.101.91.159 A 52.101.209.28 A 52.101.91.156 AAAA 2a01:111:f403:ca04::e AAAA 2a01:111:f403:ca04::4 AAAA 2a01:111:f403:ca04::9 AAAA 2a01:111:f403:ca48::a	mail-as8pr05cu00401.inbound.protection.outlook.com ✓ mail-matpr04cu00207.inbound.protection.outlook.com ✓ mail-cpjpr05cu00104.inbound.protection.outlook.com ✓ mail-maspr04cu00104.inbound.protection.outlook.com ✓ mail-db8pr02cu00106.inbound.protection.outlook.com ✓ mail-db4pr02cu00204.inbound.protection.outlook.com ✓ mail-db7pr03cu00601.inbound.protection.outlook.com ✓ mail-miypr02cu00202.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

MTA-STS testing · TLS-RPT · DANE on 0 of 1 MX hosts

Found

MTA-STS record: v=STSv1; id=20260507160000Z;
Policy URL: https://mta-sts.tuvsud.com/.well-known/mta-sts.txt
Mode: testing
Allowed MX: *.mail.protection.outlook.com
Max age: 604800 seconds
TLS-RPT record: v=TLSRPTv1; rua=mailto:htest.14@tuvsud.com;

DANE (TLSA records)

MX host	TLSA	DNSSEC
tuvsud-com.mail.protection.outlook.com	none	-

Checks

✓ Record published #32

MTA-STS record found with id 20260507160000Z.
!

Policy in testing mode

With mode: testing, senders only report TLS problems (via TLS-RPT) and still deliver without TLS. Switch to mode: enforce once reports are clean.

#33
✓ All MX hosts covered #34

Every MX host matches an mx: line of the MTA-STS policy.
✓ Reports enabled #35

TLS reports are sent to: mailto:htest.14@tuvsud.com
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