SAK St.Gallisch-Appenzellische Kraftwerke

sak.ch

Industry: Energy
Headquarters: St. Gallen, St. Gallen
Type: public
Employees (approx.): 600
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.: 52.3 ▲ 11.7
Overall avg.: 53.5 ▲ 10.5
Rank 20 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.

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 · St.Gallisch-Appenzellische Kraftwerke AG
Tenant region: EU

Signals (6)

MX	Microsoft 365	`sak-ch.mail.protection.outlook.com`
SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-sak-ch._domainkey.sakch.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Network	Microsoft 365	`AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`sak-ch.mail.protection.outlook.com`	`52.101.185.24`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US	–
		`52.101.68.21`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US
		`52.101.73.153`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US

SPF

v=spf1 ip4:83.144.241.228 ip4:93.182.178.125 ip4:62.80.18.93 ip4:217.150.245.182 ip4:217.150.245.183 ip4:217.173.238.134/30 ip4:34.65.85.243 ip4:34.65.198.147 ip4:3.74.32.243 ip4:34.65.211.248 ip4:34.65.53.236 ip4:213.158.155.99 ip4:99.80.183.117 ip4:99.81.135.32 include:spf.protection.outlook.com include:spf.mandrillapp.com include:fl1.li include:_spf.zimpel.de include:25897583.spf08.hubspotemail.net include:spf.trendhosting-net.ch -all

all: -all
DNS lookups: 6 / 10
Includes: spf.protection.outlook.comspf.mandrillapp.comfl1.li_spf.zimpel.de25897583.spf08.hubspotemail.netspf.trendhosting-net.ch
Detected sending services: Microsoft 365, Mailchimp/Mandrill, Mailchimp Transactional, HubSpot
IPv4: 17 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; sp=none; rua=mailto:dmarc@mailinblue.com!10m; ruf=mailto:dmarc@mailinblue.com!10m; rf=afrf; aspf=r; pct=100; ri=86400

Policy: p=quarantine
Subdomains (sp): none
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc@mailinblue.com!10m
Forensic reports (ruf): dmarc@mailinblue.com!10m

DKIM

Selector	Key	delegated to
`k2`	RSA 2048	`dkim2.mcsv.net`
`k3`	RSA 2048	`dkim3.mcsv.net`
`mail`	RSA 1024	–
`mandrill`	RSA 1024	–
`selector1`	RSA 1024	`selector1-sak-ch._domainkey.sakch.onmicrosoft.com`
`selector2`	RSA 2048	`selector2-sak-ch._domainkey.sakch.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.

AtlassianHave I Been PwnedBrevo

History

18 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

sak.ch. IN MX 10 sak-ch.mail.protection.outlook.com.
sak.ch. IN TXT "v=spf1 ip4:83.144.241.228 ip4:93.182.178.125 ip4:62.80.18.93 ip4:217.150.245.182 ip4:217.150.245.183 ip4:217.173.238.134/30 ip4:34.65.85.243 ip4:34.65.198.147 ip4:3.74.32.243 ip4:34.65.211.248 ip4:34.65.53.236 ip4:213.158.155.99 ip4:99.80.183.117 ip4:99.81.135.32 include:spf.protection.outlook.com include:spf.mandrillapp.com include:fl1.li include:_spf.zimpel.de include:25897583.spf08.hubspotemail.net include:spf.trendhosting-net.ch -all"
_dmarc.sak.ch. IN TXT "v=DMARC1; p=quarantine; sp=none; rua=mailto:dmarc@mailinblue.com!10m; ruf=mailto:dmarc@mailinblue.com!10m; rf=afrf; aspf=r; pct=100; ri=86400"

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