Gemeinde Sarnen
sarnen.ch
- Industry
- Municipalities
- Headquarters
- Sarnen, Obwalden
- Type
- public
- Population
- 10,906
- FSO no.
- 1407
- Checked on
- 19 October 2026
Protection against forged senders: not protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 0 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 50.9 ▼ 5.9
- Canton avg.: 53.4 ▼ 8.4
- Overall avg.: 53.5 ▼ 8.5
- Rank 1300 of 2077 in the industry
Findings
-
✕No DMARC record
Without DMARC no receiver reliably rejects forged mail in the domain's name, and the organisation receives no abuse reports.
-
!SPF close to the 10-lookup limit (9)
One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
-
!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.
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Provider jurisdiction
- USA · MX: CH
- Detection confidence
- 99 / 100
- Microsoft tenant
- Managed · Informatik Leistungszentrum Ob- und Nidwalden
- Tenant region
- EU
Signals (4)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| DKIM | Microsoft 365 | selector1 → selector1-sarnen-ch._domainkey.ilzownw.w-v1.dkim.mail.microsoft |
| Domain verification | Microsoft 365 | MS=ms57665428 |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | ktvmx01.mail.admin.ch | 162.23.22.161 | AS33845 SWISSGOV - SWISSGOV | CH | – |
| 10 | ktvmx02.mail.admin.ch | 162.23.23.161 | AS33845 SWISSGOV - SWISSGOV | CH | – |
| 10 | ktvmx03.mail.admin.ch | 162.23.22.171 | AS33845 SWISSGOV - SWISSGOV | CH | – |
| 10 | ktvmx04.mail.admin.ch | 162.23.23.171 | AS33845 SWISSGOV - SWISSGOV | CH | – |
SPF
v=spf1 ip4:185.7.213.20 include:_spfgroupa.admin.ch include:_spf.i-web.ch include:spf.protection.outlook.com -all- all
-all- DNS lookups
- 9 / 10
- Includes
_spfgroupa.admin.ch_spf.i-web.chspf.protection.outlook.com- Detected sending services
- Microsoft 365
- IPv4
- 1 addresses authorised directly
DMARC
Without DMARC no receiver reliably rejects forged mail in the domain's name, and the organisation receives no abuse reports.
DKIM
| Selector | Key | delegated to |
|---|---|---|
selector1 | RSA 2048 | selector1-sarnen-ch._domainkey.ilzownw.w-v1.dkim.mail.microsoft |
selector2 | RSA 2048 | selector2-sarnen-ch._domainkey.ilzownw.w-v1.dkim.mail.microsoft |
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 365
History
- Score 45 · DMARC -
Raw data
sarnen.ch. IN MX 10 ktvmx01.mail.admin.ch.
sarnen.ch. IN MX 10 ktvmx02.mail.admin.ch.
sarnen.ch. IN MX 10 ktvmx03.mail.admin.ch.
sarnen.ch. IN MX 10 ktvmx04.mail.admin.ch.
sarnen.ch. IN TXT "v=spf1 ip4:185.7.213.20 include:_spfgroupa.admin.ch include:_spf.i-web.ch include:spf.protection.outlook.com -all"