Regionalwerke Baden

regionalwerke.ch

Industry: Energy
Headquarters: Baden, Aargau
Type: public
Employees (approx.): 180
Checked on: 19 October 2026

64/100Grade C

Protection against forged senders: largely protected

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.: 57.3 ▲ 6.7
Overall avg.: 53.5 ▲ 10.5
Rank 19 of 43 in the industry

Findings

!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: CH
Detection confidence: 99 / 100
Microsoft tenant: Managed · Regionalwerke AG Baden
Tenant region: EU

Signals (5)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-regionalwerke-ch._domainkey.rwbagbaden.onmicrosoft.com`
Domain verification	Microsoft 365	`MS=ms84531210`
Domain verification	Google Workspace	`google-site-verification=Hwr1FvUWV9M1y84`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`mail.regionalwerke.ch`	`83.144.234.18`	AS33965 LITECOM - LITECOM AG	CH	–

SPF

v=spf1 mx a:mail.i-web.ch ip4:83.144.234.8 ip4:83.144.234.18 include:spf.protection.outlook.com include:_spf.ch.xurrent.com -all

all: -all
DNS lookups: 4 / 10
Includes: spf.protection.outlook.com_spf.ch.xurrent.com
Detected sending services: Microsoft 365
IPv4: 2 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc@regionalwerke.ch; ruf=mailto:dmarc@regionalwerke.ch; sp=quarantine; fo=1; adkim=s; aspf=s;

Policy: p=quarantine
Subdomains (sp): quarantine
Share (pct): 100 %
Alignment DKIM/SPF: strict / strict
Aggregate reports (rua): dmarc@regionalwerke.ch
Forensic reports (ruf): dmarc@regionalwerke.ch

DKIM

Selector	Key	delegated to
`selector1`	RSA 2048	`selector1-regionalwerke-ch._domainkey.rwbagbaden.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.

Microsoft 365GoogleAppleMeta/FacebookAtlassian

History

19 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

regionalwerke.ch. IN MX 10 mail.regionalwerke.ch.
regionalwerke.ch. IN TXT "v=spf1 mx a:mail.i-web.ch ip4:83.144.234.8 ip4:83.144.234.18 include:spf.protection.outlook.com include:_spf.ch.xurrent.com -all"
_dmarc.regionalwerke.ch. IN TXT "v=DMARC1; p=quarantine; rua=mailto:dmarc@regionalwerke.ch; ruf=mailto:dmarc@regionalwerke.ch; sp=quarantine; fo=1; adkim=s; aspf=s;"

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