SIG Services Industriels de Genève

sig-ge.ch

Industry: Energy
Headquarters: Vernier, Geneva
Type: public
Employees (approx.): 1,700
Checked on: 19 October 2026

64/100Grade C

Protection against forged senders: largely protected, with a gap: subdomains not protected (sp=none)

Points per criterion

MX 10 / 10
SPF 15 / 15
DKIM 20 / 20
DMARC 19 / 25
DNSSEC 0 / 10
Transport (MTA-STS/DANE) 0 / 15
TLS-RPT 0 / 5

Industry avg.: 60.5 ▲ 3.5
Canton avg.: 51.9 ▲ 12.1
Overall avg.: 53.5 ▲ 10.5
Rank 21 of 43 in the industry

Findings

!Subdomains unprotected (sp=none)

The main domain is protected, but subdomains such as invoice.company.ch can still be forged.
!DKIM key below 2048 bits

RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.
!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.
iStrict DMARC alignment

adkim=s or aspf=s requires exact domain matches. Secure, but demanding when sending from subdomains.

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 · SIG
Tenant region: EU

Signals (7)

MX	Microsoft 365	`sigge-ch0i.mail.protection.outlook.com`
SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-sigge-ch0i._domainkey.siggeneve.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Network	Microsoft 365	`AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation`
Domain verification	Google Workspace	`google-site-verification=QbS9_oJUKjrqay6`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
0	`sigge-ch0i.mail.protection.outlook.com`	`52.101.185.21`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US	–
		`52.101.185.114`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US
		`52.101.103.39`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US

SPF

v=spf1 ip4:194.147.245.77 ip4:128.65.195.39 ip4:194.147.245.65 include:spf.protection.outlook.com -all

all: -all
DNS lookups: 1 / 10
Includes: spf.protection.outlook.com
Detected sending services: Microsoft 365
IPv4: 3 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; pct=100; adkim=r; aspf=s; sp=none; rua=mailto:d@rua.sig-ge.ch;ruf=mailto:d@ruf.sig-ge.ch

Policy: p=quarantine
Subdomains (sp): none
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / strict
Aggregate reports (rua): d@rua.sig-ge.ch
Forensic reports (ruf): d@ruf.sig-ge.ch

DKIM

Selector	Key	delegated to
`selector1`	RSA 1024	`selector1-sigge-ch0i._domainkey.siggeneve.onmicrosoft.com`

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.

GoogleHave I Been Pwned

History

18 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

sig-ge.ch. IN MX 0 sigge-ch0i.mail.protection.outlook.com.
sig-ge.ch. IN TXT "v=spf1 ip4:194.147.245.77 ip4:128.65.195.39 ip4:194.147.245.65 include:spf.protection.outlook.com -all"
_dmarc.sig-ge.ch. IN TXT "v=DMARC1; p=quarantine; pct=100; adkim=r; aspf=s; sp=none; rua=mailto:d@rua.sig-ge.ch;ruf=mailto:d@ruf.sig-ge.ch"

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