Mail domain report: seomix.fr

SPF

pass

SPF record published

Found

Record: v=spf1 include:spf.infomaniak.ch include:spf.sendingservice.net include:sendgrid.net -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 #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.seomix.fr)

Found

Record: v=DMARC1; p=quarantine; rua=mailto:dmarc@seomix.fr; ruf=mailto:dmarc@seomix.fr; fo=1; pct=1
Found at: _dmarc.seomix.fr

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
pct	1	Percentage of mail the policy applies to
rua	mailto:dmarc@seomix.fr	Aggregate report addresses
ruf	mailto:dmarc@seomix.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 1% of mail

DMARC policy only applies to 1% of failing mail (pct=1). Raise pct to 100 once you are confident in your setup.

#18
✓ Aggregate reports enabled #19

Aggregate reports are sent to: mailto:dmarc@seomix.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

pass

Selectors: s1, s2

Found

Selectors: s1, s2
_domainkey: NOERROR

Selector	Key	Flags
s1	RSA 2048 bits
s2	RSA 2048 bits

Checks

✓ Keys found: s1, s2 #7

DKIM keys found for this domain with selectors: s1, s2
✓ Strong keys #23

DKIM keys are strong enough: s1: RSA 2048 bits; s2: RSA 2048 bits.
✓ 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: ECDSAP256SHA256 (13)
Key tags: 25697, 47976
Signatures valid until: 11 November 2026, 09:49 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 2026-11-11T09:49:16Z.

MX

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
5	mta-gw.infomaniak.ch	A 83.166.143.58 A 83.166.143.57 AAAA 2001:1600:0:aaaa::1:4 AAAA 2001:1600:0:aaaa::1:3	mx02.infomaniak.ch ✓ mx01.infomaniak.ch ✓ mx02.infomaniak.ch ✓ mx01.infomaniak.ch ✓

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

TLS

warn

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

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
mta-gw.infomaniak.ch	3 1 1 01bbbc3a65e5f206…	Yes

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
!

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
✓ DANE on all MX hosts #36

All 1 MX host publish DNSSEC-validated TLSA records.

BIMI

fail

https://www.seomix.fr/signature/logo-seomix-fond-clair.svg

Found

Record: v=BIMI1; l=https://www.seomix.fr/signature/logo-seomix-fond-clair.svg; a=; avp=personal;
Found at: default._bimi.seomix.fr
Logo: https://www.seomix.fr/signature/logo-seomix-fond-clair.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