Pittet Chatelan

pittet-chatelan.ch

Industry: Construction & real estate
Headquarters: Lausanne, Vaud
Type: private
Employees (approx.): 1,000
Checked on: 19 October 2026

51/100Grade C

Protection against forged senders: not protected (monitoring only)

Points per criterion

MX 10 / 10
SPF 15 / 15
DKIM 20 / 20
DMARC 6 / 25
DNSSEC 0 / 10
Transport (MTA-STS/DANE) 0 / 15
TLS-RPT 0 / 5

Industry avg.: 58.2 ▼ 7.2
Canton avg.: 58.5 ▼ 7.5
Overall avg.: 53.5 ▼ 2.5
Rank 45 of 67 in the industry

Findings

✕DMARC in monitoring mode only (p=none)

p=none provides reports but does not reject a single forgery. The goal is p=reject.
!SPF close to the 10-lookup limit (8)

One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
!DNSSEC not enabled

Without DNSSEC, DNS answers can be forged in transit. DANE requires DNSSEC.
!No MTA-STS

Without MTA-STS (or DANE) inbound encryption is not enforced; an attacker on the path can downgrade to plain text.
!No TLS reporting (TLS-RPT)

Without TLS-RPT the organisation does not learn when senders fail to deliver encrypted.

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider: Microsoft 365
Upstream gateway: Trend Micro
Provider jurisdiction: USA · MX: US
Detection confidence: 92 / 100
Microsoft tenant: Managed · Colas
Tenant region: EU

Signals (5)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Domain verification	Microsoft 365	`MS=ms97958313`
Network	Amazon	`AS16509 AMAZON-02 - Amazon.com, Inc.`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
5	`colas.in.tmes.trendmicro.eu`	`18.185.115.145`	AS16509 AMAZON-02 - Amazon.com, Inc.	US	–
		`18.185.115.147`	AS16509 AMAZON-02 - Amazon.com, Inc.	US
		`18.185.115.146`	AS16509 AMAZON-02 - Amazon.com, Inc.	US

SPF

v=spf1 include:spf1.speig.fr include:spf2.speig.fr include:spf3.speig.fr include:spf4.speig.fr -all

all: -all
DNS lookups: 8 / 10
Includes: spf1.speig.frspf2.speig.frspf3.speig.frspf4.speig.fr
Detected sending services: Microsoft 365

DMARC

v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Policy: p=none
Subdomains (sp): inherits p=none
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc_rua@emaildefense.proofpoint.com
Forensic reports (ruf): dmarc_ruf@emaildefense.proofpoint.com
Report services: Proofpoint EFD

DKIM

Selector	Key	delegated to
`default`	RSA 2048	–

Checked: 100 common selectors. Keys under custom selectors remain invisible.

Transport encryption

MTA-STS: missing
DANE: missing
DNSSEC: missing
TLS-RPT: missing
BIMI: missing

Verified services

From verification records in the domain TXT: services where the domain is verified.

Microsoft 365

History

18 October 2026 Score 51 · DMARC none

All changes of this organisation in the change log →

Raw data

pittet-chatelan.ch. IN MX 5 colas.in.tmes.trendmicro.eu.
pittet-chatelan.ch. IN TXT "v=spf1 include:spf1.speig.fr include:spf2.speig.fr include:spf3.speig.fr include:spf4.speig.fr -all"
_dmarc.pittet-chatelan.ch. IN TXT "v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com"

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