Schulthess Klinik
kws.ch
- Industry
- Healthcare
- Headquarters
- Zürich, Zurich
- Type
- private
- Employees (approx.)
- 1,200
- Checked on
- 19 October 2026
Protection against forged senders: protected, with a gap: subdomains not protected (sp=none)
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.: 54.8 ▲ 15.2
- Canton avg.: 53 ▲ 17
- Overall avg.: 53.5 ▲ 16.5
- Rank 25 of 113 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.
-
!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.
Who runs the mail?
- Mailbox provider
- Self-hosted / other
- Provider jurisdiction
- Switzerland · MX: CH
- Detection confidence
- 85 / 100
- Microsoft tenant
- Managed · Schulthess Klinik
- Tenant region
- EU
Signals (4)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| Domain verification | Microsoft 365 | MS=ms64075691 |
| Network | Swisscom | AS3303 SWISSCOM - Swisscom (Schweiz) AG |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | mx01.kws.ch | 195.65.163.138 | AS3303 SWISSCOM - Swisscom (Schweiz) AG | CH | – |
| 10 | mx02.kws.ch | 195.65.163.139 | AS3303 SWISSCOM - Swisscom (Schweiz) AG | CH | – |
SPF
v=spf1 mx ip4:195.65.163.132 ip4:195.65.163.141 mx:hin.ch include:spf.nl2go.com include:_spf-dc12.successfactors.com include:_spf.zimpel.de include:_spf.psm.knowbe4.com include:spf.protection.outlook.com -all- all
-all- DNS lookups
- 10 / 10
- Includes
spf.nl2go.com_spf-dc12.successfactors.com_spf.zimpel.de_spf.psm.knowbe4.comspf.protection.outlook.com- Detected sending services
- SAP, Microsoft 365
- IPv4
- 2 addresses authorised directly
DMARC
v=DMARC1; p=reject; rua=mailto:2d67a9251092025@rep.dmarcanalyzer.com; ruf=mailto:2d67a9251092025@for.dmarcanalyzer.com; sp=none; fo=1;- Policy
- p=reject
- Subdomains (sp)
- none
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
2d67a9251092025@rep.dmarcanalyzer.com- Forensic reports (ruf)
2d67a9251092025@for.dmarcanalyzer.com
DKIM
| Selector | Key | delegated to |
|---|---|---|
mail | 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 365AppleAtlassianAdobeBrevo
History
- Score 70 · DMARC reject
Raw data
kws.ch. IN MX 10 mx01.kws.ch.
kws.ch. IN MX 10 mx02.kws.ch.
kws.ch. IN TXT "v=spf1 mx ip4:195.65.163.132 ip4:195.65.163.141 mx:hin.ch include:spf.nl2go.com include:_spf-dc12.successfactors.com include:_spf.zimpel.de include:_spf.psm.knowbe4.com include:spf.protection.outlook.com -all"
_dmarc.kws.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:2d67a9251092025@rep.dmarcanalyzer.com; ruf=mailto:2d67a9251092025@for.dmarcanalyzer.com; sp=none; fo=1;"