Gemeinde Neuheim

neuheim.ch

Industry
Municipalities
Headquarters
Neuheim, Zug
Type
public
Population
2,523
FSO no.
1705
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

Findings

  • !SPF close to the 10-lookup limit (8)

    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
97 / 100
Microsoft tenant
Federated · Zuger-Gemeinden
Tenant region
EU
Federated via
login.stadtzug.ch
Signals (3)
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector1 → selector1-neuheim-ch._domainkey.zug.onmicrosoft.com
Entra IDMicrosoft 365Entra-ID-Tenant (Federated)

MX servers

PrefHostIPNetworkCountryTLSA
10 mail1.zg.ch 193.134.26.181 AS51907 CH-ZG - Kanton Zug CH –
20 mail2.zg.ch 193.134.26.182 AS51907 CH-ZG - Kanton Zug CH –

SPF

v=spf1 include:spf.zg.ch include:spf.itszug.ch -all
all
-all
DNS lookups
8 / 10
Includes
spf.zg.chspf.itszug.ch
Detected sending services
Microsoft 365

DMARC

v=DMARC1; p=reject; rua=mailto:dmarc-reports@itszug.ch;
Policy
p=reject
Subdomains (sp)
inherits p=reject
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
dmarc-reports@itszug.ch

DKIM

SelectorKeydelegated to
dkim1 RSA 1024 –
dkim2 RSA 1024 –
selector1 RSA 2048 selector1-neuheim-ch._domainkey.zug.onmicrosoft.com
selector2 RSA 2048 selector2-neuheim-ch._domainkey.zug.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

History

  • Score 70 · DMARC reject

All changes of this organisation in the change log →

Raw data
neuheim.ch. IN MX 10 mail1.zg.ch.
neuheim.ch. IN MX 20 mail2.zg.ch.
neuheim.ch. IN TXT "v=spf1 include:spf.zg.ch include:spf.itszug.ch -all"
_dmarc.neuheim.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:dmarc-reports@itszug.ch;"

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