Mail domain report: societedugrandparis.fr

SPF

pass

SPF record published

Found

Record: v=spf1 a mx:talent-soft.com ip4:217.182.193.11 ip4:195.68.89.195 ip4:89.185.61.15 ip4:89.185.44.66 include:spf.protection.outlook.com include:_spf.profils.org include:spf.mailjet.com include:_spf.scw-tem.cloud include:spf.sendinblue.com ~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

warn

p=quarantine (_dmarc.societedugrandparis.fr)

Found

Record: v=DMARC1;p=quarantine;rua=mailto:security@societedugrandparis.fr
Found at: _dmarc.societedugrandparis.fr

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
rua	mailto:security@societedugrandparis.fr	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:security@societedugrandparis.fr
✓ Subdomain policy: quarantine #20

Subdomains are covered by policy 'quarantine'.
✓ Report addresses in own domain #29

All report addresses are in your own organizational domain.

DKIM

warn

Selectors: mail, selector1, selector2

Found

Selectors: mail, selector1, selector2
_domainkey: NOERROR

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

pass

Signed, DS published at parent

Found

DNSKEY records: Yes (2)
DS at parent: Yes
Algorithms: RSASHA256 (8)
Key tags: 58450, 39430
Signatures valid until: 11 November 2026, 12:22 UTC

Checks

✓ Signed, DS published at parent #8

DNSSEC is enabled for this domain (DNSKEY and DS present), providing additional security for DNS lookups.
✓ Signatures valid until 2026-11-11 #21

DNSKEY signatures are valid until 2026-11-11T12:22:09Z.

MX

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
10	societedugrandparis-fr.mail.protection.outlook.com	A 52.101.166.0 A 52.101.166.1 A 52.101.166.2 A 52.101.164.0 AAAA 2a01:111:f403:ca25::2 AAAA 2a01:111:f403:ca25::1 AAAA 2a01:111:f403:ca25:: AAAA 2a01:111:f403:ca1e::	mail-pa5p264cu00200.inbound.protection.outlook.com ✓ mail-pr0p264cu01301.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 ✓ mail-mrzp264cu00100.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 enforce · no TLS-RPT · DANE on 0 of 1 MX hosts

Found

MTA-STS record: v=STSv1; id=2025;
Policy URL: https://mta-sts.societedugrandparis.fr/.well-known/mta-sts.txt
Mode: enforce
Allowed MX: mx11.societedugrandparis.fr, mx12.societedugrandparis.fr, mx13.societedugrandparis.fr, mx14.societedugrandparis.fr, *.societedugrandparis.fr, sgpdev-fr.mail.protection.outlook.com, sgpimmobilier-fr.mail.protection.outlook.com, societedugrandparis-fr.mail.protection.outlook.com, sgp-fr.mail.protection.outlook.com
Max age: 1209600 seconds

DANE (TLSA records)

MX host	TLSA	DNSSEC
societedugrandparis-fr.mail.protection.outlook.com	none	-

Checks

✓ Record published #32

MTA-STS record found with id 2025.
✓ Policy enforced #33

The MTA-STS policy is enforced and cached for 336h0m0s.
✓ 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

warn

https://www.grandparisexpress.fr/.well-known/sgp.svg

Found

Record: v=BIMI1; l=https://www.grandparisexpress.fr/.well-known/sgp.svg; a=;
Found at: default._bimi.societedugrandparis.fr
Logo: https://www.grandparisexpress.fr/.well-known/sgp.svg

Checks

!

No certificate (a=)

The logo is published without a Verified Mark Certificate. Gmail and Apple Mail only show BIMI logos with a VMC or CMC; Yahoo shows it without one.

#38
✓ DMARC meets BIMI requirements #39

DMARC is enforced on all mail, as BIMI requires.