Mail domain report: sisteron-buech.fr

SPF

warn

SPF record published

Found

Record: v=spf1 mx include:spf.avizi.fr include:spf.dahub.io include:spf.mailjet.com include:_spf.websenso.com include:_spf.google.com ip4:149.72.203.251 ?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 (neutral)

SPF record uses ?all (neutral), which gives no protection against unauthorized senders. Use -all or ~all instead.

#3
✓ 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.sisteron-buech.fr)

Found

Record: v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com; pct=100
Found at: _dmarc.sisteron-buech.fr
External report address: mailto:rua@dmarc.brevo.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	none	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:rua@dmarc.brevo.com	Aggregate report addresses

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:rua@dmarc.brevo.com
✓ External report addresses authorized #29

Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: mail, google

Found

Selectors: mail, google
_domainkey: NOERROR

Selector	Key	Flags
mail	RSA 1024 bits
google	RSA 2048 bits

Checks

✓ Keys found: mail, google #7

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

1024-bit DKIM key

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

7 mail servers

Found

Priority	Host	Records	Reverse DNS
1	ASPMX.L.GOOGLE.COM	A 142.251.127.27 AAAA 2a00:1450:4001:c21::1b	lcfrai-in-f27.1e100.net ✓ lcfrai-in-f27.1e100.net ✓
5	ALT1.ASPMX.L.GOOGLE.COM	A 142.250.147.27 AAAA 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net ✓ rd-in-f26.1e100.net ✓
5	ALT2.ASPMX.L.GOOGLE.COM	A 172.253.152.27 AAAA 2a00:1450:4010:c22::1a	yulpptr-in-f27.1e100.net ✓ yulpptr-in-f26.1e100.net ✓
10	ALT3.ASPMX.L.GOOGLE.COM	A 192.179.20.26 AAAA 2404:6800:4000:1027::1b	ncboms-in-f26.1e100.net ✓ ncboms-in-f27.1e100.net ✓
10	ALT4.ASPMX.L.GOOGLE.COM	A 192.178.158.27 AAAA 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net ✓ lcdels-in-f26.1e100.net ✓
30	spool.mail.gandi.net	A 217.70.178.1 AAAA 2001:4b98:e00::1	spool.mail.gandi.net ✓ spool.mail.gandi.net ✓
50	fb.mail.gandi.net	A 217.70.178.215 A 217.70.178.217 A 217.70.178.216 AAAA 2001:4b98:dc4:8::215 AAAA 2001:4b98:dc4:8::216 AAAA 2001:4b98:dc4:8::217	spool6.mail.gandi.net ✓ spool8.mail.gandi.net ✓ spool7.mail.gandi.net ✓ spool6.mail.gandi.net (does not resolve back) spool7.mail.gandi.net (does not resolve back) spool8.mail.gandi.net (does not resolve back)

Checks

✓ 7 MX records #9

Found 7 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.
✓ Redundant MX hosts #12

Found 7 MX records, which provides redundancy for email delivery.
!

More than 5 MX records

Found 7 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.

#13
✓ 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 does not match

The PTR name of these addresses does not resolve back to the same address: 2001:4b98:dc4:8::215 -> spool6.mail.gandi.net, 2001:4b98:dc4:8::216 -> spool7.mail.gandi.net, 2001:4b98:dc4:8::217 -> spool8.mail.gandi.net.

#30

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 7 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
ASPMX.L.GOOGLE.COM	none	-
ALT1.ASPMX.L.GOOGLE.COM	none	-
ALT2.ASPMX.L.GOOGLE.COM	none	-
ALT3.ASPMX.L.GOOGLE.COM	none	-
ALT4.ASPMX.L.GOOGLE.COM	none	-
spool.mail.gandi.net	none	-
fb.mail.gandi.net	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