WWZ

wwz.ch

Industry: Energy
Headquarters: Zug, Zug
Type: private
Employees (approx.): 500
Checked on: 19 October 2026

70/100Grade B

Protection against forged senders: protected

Points per criterion

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

Industry avg.: 60.5 ▲ 9.5
Canton avg.: 63.2 ▲ 6.8
Overall avg.: 53.5 ▲ 16.5
Rank 11 of 43 in the industry

Findings

!SPF close to the 10-lookup limit (10)

One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
!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: CH
Detection confidence: 84 / 100
Microsoft tenant: Managed · WWZ Energie AG
Tenant region: EU

Signals (5)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Domain verification	Microsoft 365	`MS=ms12111580`
Domain verification	Google Workspace	`google-site-verification=R4SgjluHODSw4HG`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`msgwa102.wwz.ch`	`212.4.64.185`	AS8821 TELEZUG - WWZ Telekom AG	CH	–
10	`msgwa101.wwz.ch`	`212.4.64.184`	AS8821 TELEZUG - WWZ Telekom AG	CH	–

SPF

v=spf1 mx ip4:212.4.65.0/24 ip4:212.4.64.0/24 ip4:195.137.172.91 ip4:195.137.172.113 ip4:212.80.96.36 a:luca.wwz.ch include:spf.protection.outlook.com include:_spf-dc2.successfactors.com include:_spf.xurrent.com include:_spf-dc12.successfactors.com include:4415734.spf02.hubspotemail.net include:_spf.4me.qa include:spf.mailjet.com -all

all: -all
DNS lookups: 10 / 10
Includes: spf.protection.outlook.com_spf-dc2.successfactors.com_spf.xurrent.com_spf-dc12.successfactors.com4415734.spf02.hubspotemail.net_spf.4me.qaspf.mailjet.com
Detected sending services: Microsoft 365, SAP, HubSpot, Mailjet
IPv4: 515 addresses authorised directly

DMARC

v=DMARC1;p=reject;rua=mailto:mailauth-reports@wwz.ch

Policy: p=reject
Subdomains (sp): inherits p=reject
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): mailauth-reports@wwz.ch

DKIM

Selector	Key	delegated to
`hs1`	RSA 2048	`wwz-ch.hs01a.dkim.hubspotemail.net`
`hs2`	RSA 2048	`wwz-ch.hs01b.dkim.hubspotemail.net`
`mailjet`	RSA 1024	–
`smtpapi`	RSA 1024	–

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/Facebook

History

18 October 2026 Score 70 · DMARC reject

All changes of this organisation in the change log →

Raw data

wwz.ch. IN MX 10 msgwa102.wwz.ch.
wwz.ch. IN MX 10 msgwa101.wwz.ch.
wwz.ch. IN TXT "v=spf1 mx ip4:212.4.65.0/24 ip4:212.4.64.0/24 ip4:195.137.172.91 ip4:195.137.172.113 ip4:212.80.96.36 a:luca.wwz.ch include:spf.protection.outlook.com include:_spf-dc2.successfactors.com include:_spf.xurrent.com include:_spf-dc12.successfactors.com include:4415734.spf02.hubspotemail.net include:_spf.4me.qa include:spf.mailjet.com -all"
_dmarc.wwz.ch. IN TXT "v=DMARC1;p=reject;rua=mailto:mailauth-reports@wwz.ch"

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