Mail domain report: ville-guerande.fr

SPF

pass

SPF record published

Found

Record: v=spf1 a:fsh08.orpheemedia.org ip4:80.82.229.236/32 ip4:80.74.64.0/24 ip4:213.108.232.10 ip4:141.94.160.93 ip4:185.116.131.107 a:spf.ressources-si.com include:de._netblocks.mimecast.com include:spf.protection.outlook.com include:servers.etarget-emailing.com mx include:spfprod.keetoa.com include:spftools.keetoa.com include:_spf.alwaysdata.com -all
DNS lookups: 9 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 9 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.ville-guerande.fr)

Found

Record: v=DMARC1; p=quarantine; fo=1; ruf=mailto:informatique@cap-atlantique.fr; rua=mailto:rua@dmarc.brevo.com
Found at: _dmarc.ville-guerande.fr
External report address: mailto:rua@dmarc.brevo.com (authorized)
External report address: mailto:informatique@cap-atlantique.fr (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
rua	mailto:rua@dmarc.brevo.com	Aggregate report addresses
ruf	mailto:informatique@cap-atlantique.fr	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:rua@dmarc.brevo.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

Found

Selectors: selector1
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 1024 bits

Checks

✓ Keys found: selector1 #7

DKIM keys found for this domain with selectors: selector1
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: 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: 41656, 10885
Signatures valid until: 11 November 2026, 11:21 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 2026-11-11T11:21:43Z.

MX

warn

3 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-1.mimecast.com ✓ de-smtp-inbound-1.mimecast.com ✓
10	de-smtp-inbound-2.mimecast.com	A 194.104.110.22 A 194.104.108.22	de-smtp-inbound-1.mimecast.com ✓ de-smtp-inbound-1.mimecast.com ✓
20	villeguerande-fr01c.mail.protection.outlook.com	A 52.101.166.0 A 52.101.166.2 A 52.101.166.1 A 52.101.164.0 AAAA 2a01:111:f403:ca1e:: AAAA 2a01:111:f403:ca25::1 AAAA 2a01:111:f403:ca25:: AAAA 2a01:111:f403:ca25::2	mail-pa5p264cu00200.inbound.protection.outlook.com ✓ mail-paup264cu00202.inbound.protection.outlook.com ✓ mail-pr0p264cu01301.inbound.protection.outlook.com ✓ mail-mrzp264cu00100.inbound.protection.outlook.com ✓ mail-mrzp264cu00100.inbound.protection.outlook.com ✓ mail-pr0p264cu01301.inbound.protection.outlook.com ✓ mail-pa5p264cu00200.inbound.protection.outlook.com ✓ mail-paup264cu00202.inbound.protection.outlook.com ✓

Checks

✓ 3 MX records #9

Found 3 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 3 MX records, which provides redundancy for email delivery.
✓ At most 5 MX records #13

Found 3 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 12 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 3 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
de-smtp-inbound-1.mimecast.com	none	-
de-smtp-inbound-2.mimecast.com	none	-
villeguerande-fr01c.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