Mail domain report: univ-reunion.fr

SPF

pass

SPF record published

Found

Record: v=spf1 ip4:139.124.244.0/23 ip4:147.94.132.73 ip4:147.94.136.73 ip4:147.94.132.83 ip4:147.94.136.83 ip4:194.199.73.116 include:_spf.google.com include:spf.brevo.com include:spf.partage.renater.fr include:spf.relay.renater.fr -all
DNS lookups: 5 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 5 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.univ-reunion.fr)

Found

Record: v=DMARC1; p=quarantine; pct=25; rua=mailto:postmaster@univ-reunion.fr,mailto:dmarc@relay.renater.fr
Found at: _dmarc.univ-reunion.fr
External report address: mailto:dmarc@relay.renater.fr (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
pct	25	Percentage of mail the policy applies to
rua	mailto:postmaster@univ-reunion.fr,mailto:dmarc@relay.renater.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 25% of mail

DMARC policy only applies to 25% of failing mail (pct=25). Raise pct to 100 once you are confident in your setup.

#18
✓ Aggregate reports enabled #19

Aggregate reports are sent to: mailto:postmaster@univ-reunion.fr, mailto:dmarc@relay.renater.fr
✓ 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

pass

Selectors: mail, google

Found

Selectors: mail, google
_domainkey: NOERROR

Selector	Key	Flags
mail	RSA 2048 bits
google	RSA 2048 bits

Checks

✓ Keys found: mail, google #7

DKIM keys found for this domain with selectors: mail, google
✓ Strong keys #23

DKIM keys are strong enough: mail: RSA 2048 bits; google: RSA 2048 bits.
✓ 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::1b	rd-in-f27.1e100.net ✓ rd-in-f27.1e100.net ✓
5	ALT2.ASPMX.L.GOOGLE.COM	A 172.253.152.26 AAAA 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net ✓ yulpptr-in-f26.1e100.net ✓
10	ASPMX2.GOOGLEMAIL.COM	A 142.250.147.26 AAAA 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net ✓ rd-in-f26.1e100.net ✓
10	ASPMX3.GOOGLEMAIL.COM	A 172.253.152.26 AAAA 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net ✓ yulpptr-in-f27.1e100.net ✓
10	ASPMX4.GOOGLEMAIL.COM	A 192.179.20.27 AAAA 2404:6800:4000:1027::1b	ncboms-in-f27.1e100.net ✓ ncboms-in-f27.1e100.net ✓
10	ASPMX5.GOOGLEMAIL.COM	A 192.178.158.27 AAAA 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net ✓ lcdels-in-f27.1e100.net ✓

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 confirmed #30

All 14 MX addresss have a PTR record that resolves back to them.

TLS

warn

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

Found

TLS-RPT record: v=TLSRPTv1; rua=mailto:postmaster@univ-reunion.fr

DANE (TLSA records)

MX host	TLSA	DNSSEC
ASPMX.L.GOOGLE.COM	none	-
ALT1.ASPMX.L.GOOGLE.COM	none	-
ALT2.ASPMX.L.GOOGLE.COM	none	-
ASPMX2.GOOGLEMAIL.COM	none	-
ASPMX3.GOOGLEMAIL.COM	none	-
ASPMX4.GOOGLEMAIL.COM	none	-
ASPMX5.GOOGLEMAIL.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
✓ Reports enabled #35

TLS reports are sent to: mailto:postmaster@univ-reunion.fr
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

fail

https://static.univ-reunion.fr/favicon.svg

Found

Record: v=BIMI1; l=https://static.univ-reunion.fr/favicon.svg; a=
Found at: default._bimi.univ-reunion.fr
Logo: https://static.univ-reunion.fr/favicon.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 not strict enough for BIMI

Mail clients will not show the logo. BIMI requires DMARC pct=100.

#39