Mail domain report: kingarthurbaking.com

SPF

pass

SPF record published

Found

Record: v=spf1 ip4:69.84.87.217 ip4:216.66.105.200 ip4:20.98.2.159 ip4:168.245.17.202 ip4:52.188.220.136 a:ecomm4.bos.kingarthurflour.com a:ecomm5.bos.kingarthurflour.com a:pie.kingarthurflour.com a:smtp.kingarthurflour.com include:spf.protection.outlook.com include:_spf.bigcommerce.com include:helpscoutemail.com include:_spf.psm.knowbe4.com include:esp1.co -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.kingarthurbaking.com)

Found

Record: v=DMARC1; p=quarantine; pct=100
Found at: _dmarc.kingarthurbaking.com

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
pct	100	Percentage of mail the policy applies to

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.
!

No aggregate reports (rua)

DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...

#19
✓ Subdomain policy: quarantine #20

Subdomains are covered by policy 'quarantine'.

DKIM

warn

Selectors: selector1, s1, s2

Found

Selectors: selector1, s1, s2
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 2048 bits
s1	RSA 2048 bits
s2	RSA 1024 bits

Checks

✓ Keys found: selector1, s1, s2 #7

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

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: s2 (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

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	kingarthurbaking-com.mail.protection.outlook.com	A 52.101.60.188 A 52.101.42.81 A 52.101.202.156 A 52.101.60.163 AAAA 2a01:111:f403:f907:: AAAA 2a01:111:f403:f901:: AAAA 2a01:111:f403:c92c:: AAAA 2a01:111:f403:c946::3	mail-bn0pr04cu01004.inbound.protection.outlook.com ✓ mail-ea2pr04cu00101.inbound.protection.outlook.com ✓ mail-ph8pr21cu00204.inbound.protection.outlook.com ✓ mail-bn3pr04cu00103.inbound.protection.outlook.com ✓ mail-dm2pr02cu00100.inbound.protection.outlook.com ✓ mail-bl3pr02cu00100.inbound.protection.outlook.com ✓ mail-dm6pr04cu00200.inbound.protection.outlook.com ✓ mail-ch0pr04cu00603.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
kingarthurbaking-com.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

pass

https://bimi.entrust.net/kingarthurbaking.com/logo.svg

Found

Record: v=BIMI1; l=https://bimi.entrust.net/kingarthurbaking.com/logo.svg; a=https://bimi.entrust.net/kingarthurbaking.com/certchain.pem;
Found at: default._bimi.kingarthurbaking.com
Logo: https://bimi.entrust.net/kingarthurbaking.com/logo.svg
Certificate: https://bimi.entrust.net/kingarthurbaking.com/certchain.pem

Checks

✓ Logo and certificate published #38

BIMI logo: https://bimi.entrust.net/kingarthurbaking.com/logo.svg; certificate: https://bimi.entrust.net/kingarthurbaking.com/certchain.pem
✓ DMARC meets BIMI requirements #39

DMARC is enforced on all mail, as BIMI requires.