Equans Schweiz

equans.com

Industry: Construction & real estate
Headquarters: Zürich, Zurich
Type: private
Employees (approx.): 5,000
Checked on: 19 October 2026

80/100Grade B

Protection against forged senders: protected

Points per criterion

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

Industry avg.: 58.2 ▲ 21.8
Canton avg.: 53 ▲ 27
Overall avg.: 53.5 ▲ 26.5
Rank 3 of 67 in the industry

Findings

!DKIM key below 2048 bits

RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.
!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
Provider jurisdiction: USA · MX: US
Detection confidence: 100 / 100
Microsoft tenant: Managed · EQUANS
Tenant region: EU

Signals (9)

MX	Microsoft 365	`equans.mail.protection.outlook.com`
SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-equans-com._domainkey.equans.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Domain verification	Microsoft 365	`MS=ms41982652`
Network	Microsoft 365	`AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation`
Domain verification	Google Workspace	`google-site-verification=o0rwhrCtRz7RL9T`
Network	Amazon	`AS14618 AMAZON-AES - Amazon.com, Inc.`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
20	`equans.mail.protection.outlook.com`	`52.101.166.1`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US	–
		`52.101.164.0`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US
		`52.101.166.0`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US
30	`usrelay.mailhost.myequans.com`	`107.20.67.114`	AS14618 AMAZON-AES - Amazon.com, Inc.	US	–
30	`usrelay.mailhost.myequans.com`	`52.206.142.98`	AS14618 AMAZON-AES - Amazon.com, Inc.	US	–
31	`anzrelay.mailhost.myequans.com`	`3.104.129.171`	AS16509 AMAZON-02 - Amazon.com, Inc.	US	–

SPF

v=spf1 mx include:_gtw.equans.com include:spf.protection.outlook.com -all

all: -all
DNS lookups: 3 / 10
Includes: _gtw.equans.comspf.protection.outlook.com
Detected sending services: Microsoft 365

DMARC

v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:5fcnr3lu@ag.eu.dmarcadvisor.com; ruf=mailto:5fcnr3lu@fr.eu.dmarcadvisor.com;

Policy: p=reject
Subdomains (sp): inherits p=reject
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): 5fcnr3lu@ag.eu.dmarcadvisor.com
Forensic reports (ruf): 5fcnr3lu@fr.eu.dmarcadvisor.com
Report services: DMARC Advisor

DKIM

Selector	Key	delegated to
`mail`	RSA 1024	–
`s1`	RSA 2048	`s1.domainkey.u3858597.wl098.sendgrid.net`
`s2`	RSA 1024	`s2.domainkey.u3858597.wl098.sendgrid.net`
`selector1`	RSA 2048	`selector1-equans-com._domainkey.equans.onmicrosoft.com`

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

Transport encryption

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

Verified services

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

Microsoft 365GoogleAppleAtlassianDocuSignGlobalSignTwilio/SendGridAutodesk

History

18 October 2026 Score 80 · DMARC reject

All changes of this organisation in the change log →

Raw data

equans.com. IN MX 20 equans.mail.protection.outlook.com.
equans.com. IN MX 30 usrelay.mailhost.myequans.com.
equans.com. IN MX 31 anzrelay.mailhost.myequans.com.
equans.com. IN TXT "v=spf1 mx include:_gtw.equans.com include:spf.protection.outlook.com -all"
_dmarc.equans.com. IN TXT "v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:5fcnr3lu@ag.eu.dmarcadvisor.com; ruf=mailto:5fcnr3lu@fr.eu.dmarcadvisor.com;"

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