Mail domain report: univ-lyon2.fr

SPF

pass

SPF record published

Found

Record: v=spf1 ip4:159.84.182.45 ip4:159.84.182.43 ip4:159.84.182.42 -all
DNS lookups: 0 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 0 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-lyon2.fr)

Found

Record: v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@univ-lyon2.fr; ruf=mailto:dmarc@univ-lyon2.fr; adkim=r; aspf=r; rf=afrf; ri=86400; sp=quarantine
Found at: _dmarc.univ-lyon2.fr

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
sp	quarantine	Subdomain policy
pct	100	Percentage of mail the policy applies to
rua	mailto:dmarc@univ-lyon2.fr	Aggregate report addresses
ruf	mailto:dmarc@univ-lyon2.fr	Failure report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)
rf	afrf	Failure report format
ri	86400	Report interval (seconds)

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:dmarc@univ-lyon2.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

No keys found under the checked selectors

Found

Selectors: None found
_domainkey: NOERROR

Checks

!

No key under common selectors

The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.

#7

DNSSEC

pass

Signed, DS published at parent

Found

DNSKEY records: Yes (1)
DS at parent: Yes
Algorithms: RSASHA256 (8)
Key tags: 41177
Signatures valid until: 6 November 2026, 03:22 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 2026-11-06 #21

DNSKEY signatures are valid until 2026-11-06T03:22:02Z.

MX

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
20	mx.univ-lyon2.fr	A 159.84.248.59	mx.univ-lyon2.fr ✓

Checks

✓ 1 MX record #9

Found 1 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: mx.univ-lyon2.fr

#11
!

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 1 MX address have a PTR record that resolves back to them.

TLS

warn

MTA-STS testing · no TLS-RPT · DANE on 0 of 1 MX hosts

Found

MTA-STS record: v=STSv1; id=AA2019025001;
Policy URL: https://mta-sts.univ-lyon2.fr/.well-known/mta-sts.txt
Mode: testing
Allowed MX: mx.univ-lyon2.fr
Max age: 86400 seconds

DANE (TLSA records)

MX host	TLSA	DNSSEC
mx.univ-lyon2.fr	none	-

Checks

✓ Record published #32

MTA-STS record found with id AA2019025001.
!

Policy in testing mode

With mode: testing, senders only report TLS problems (via TLS-RPT) and still deliver without TLS. Switch to mode: enforce once reports are clean.

#33
✓ 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

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