Mail domain report: richardson.fr

SPF

pass

SPF record published

Found

Record: v=spf1 a ip4:46.18.213.21 ip4:46.18.213.29 ip4:5.50.2.240 ip4:176.162.248.249 ip4:94.140.18.128/26 ip4:94.140.18.224/27 ip4:52.58.166.242 ip4:52.29.100.147 ip4:212.23.164.224 mx include:sfrbusinessteam.fr include:spf.protection.outlook.com include:spf.sendinblue.com include:sendgrid.net -all
DNS lookups: 7 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 7 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

fail

p=none (_dmarc.richardson.fr)

Found

Record: v=DMARC1; p=none; sp=none; rua=mailto:3lloonl8yq@rua.powerdmarc.com,mailto:4505f0b3@in.mailhardener.com,mailto:dmarc@mailinblue.com!10m; ruf=mailto:3lloonl8yq@ruf.powerdmarc.com,mailto:4505f0b3@in.mailhardener.com,mailto:dmarc@mailinblue.com!10m; fo=1; rf=afrf; pct=100;
Found at: _dmarc.richardson.fr
External report address: mailto:3lloonl8yq@rua.powerdmarc.com (authorized)
External report address: mailto:4505f0b3@in.mailhardener.com (authorized)
External report address: mailto:dmarc@mailinblue.com!10m (authorized)
External report address: mailto:3lloonl8yq@ruf.powerdmarc.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	none	Policy
sp	none	Subdomain policy
pct	100	Percentage of mail the policy applies to
rua	mailto:3lloonl8yq@rua.powerdmarc.com,mailto:4505f0b3@in.mailhardener.com,mailto:dmarc@mailinblue.com!10m	Aggregate report addresses
ruf	mailto:3lloonl8yq@ruf.powerdmarc.com,mailto:4505f0b3@in.mailhardener.com,mailto:dmarc@mailinblue.com!10m	Failure report addresses
fo	1	Failure reporting options
rf	afrf	Failure report format

Checks

✗

Policy: none (monitoring only)

DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.

#4
✓ Record published #5

DMARC record exists for this domain.
✓ Valid syntax #17

DMARC record syntax is valid.
✓ Aggregate reports enabled #19

Aggregate reports are sent to: mailto:3lloonl8yq@rua.powerdmarc.com, mailto:4505f0b3@in.mailhardener.com, mailto:dmarc@mailinblue.com!10m
✓ External report addresses authorized #29

Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: mail, selector1, selector2

Found

Selectors: mail, selector1, selector2
_domainkey: NXDOMAIN

Selector	Key	Flags
mail	RSA 1024 bits
selector1	RSA 1024 bits
selector2	RSA 2048 bits

Checks

✓ Keys found: mail, selector1, selector2 #7

DKIM keys found for this domain with selectors: mail, selector1, selector2
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: mail (1024 bits), 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

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	richardson-fr.mail.protection.outlook.com	A 52.101.166.0 A 52.101.166.2 A 52.101.164.0 A 52.101.166.1 AAAA 2a01:111:f403:c967::a AAAA 2a01:111:f403:ca04::b AAAA 2a01:111:f403:ca09::26 AAAA 2a01:111:f403:ca48::8	mail-pa5p264cu00200.inbound.protection.outlook.com ✓ mail-paup264cu00202.inbound.protection.outlook.com ✓ mail-mrzp264cu00100.inbound.protection.outlook.com ✓ mail-pr0p264cu01301.inbound.protection.outlook.com ✓ mail-cpjpr05cu00102.inbound.protection.outlook.com ✓ mail-dbbpr03cu00103.inbound.protection.outlook.com ✓ mail-am8pr83cu00106.inbound.protection.outlook.com ✓ mail-miypr02cu00100.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
richardson-fr.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