Zürcher Hochschule der Künste ZHdK
zhdk.ch
- Industry
- Universities & research
- Headquarters
- Zürich, Zurich
- Type
- public
- Checked on
- 19 October 2026
Protection against forged senders: not protected (monitoring only)
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 6 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 57.9 ▼ 6.9
- Canton avg.: 53 ▼ 2
- Overall avg.: 53.5 ▼ 2.5
- Rank 44 of 58 in the industry
Findings
-
✕DMARC in monitoring mode only (p=none)
p=none provides reports but does not reject a single forgery. The goal is p=reject.
-
!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.
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Provider jurisdiction
- USA · MX: US, CH
- Detection confidence
- 100 / 100
- Microsoft tenant
- Managed · Zürcher Hochschule der Künste
- Tenant region
- EU
Signals (6)
| MX | Microsoft 365 | zhdk-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-zhdk-ch._domainkey.zhdkch.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | zhdk-ch.mail.protection.outlook.com | 52.101.91.21 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.103.39 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.68.21 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
| 70 | smtp.zhdk.ch | 195.176.247.158 | AS559 Switch - SWITCH | CH | – |
195.176.247.157 | AS559 Switch - SWITCH | CH |
SPF
v=spf1 mx:zhdk.ch include:spf.refline.ch include:spf.abxsec.com include:spfhard.crsend.com include:spf.protection.outlook.com include:spf.augure.com -all- all
-all- DNS lookups
- 8 / 10
- Includes
spf.refline.chspf.abxsec.comspfhard.crsend.comspf.protection.outlook.comspf.augure.com- Detected sending services
- Microsoft 365
DMARC
v=DMARC1; p=none; rua=mailto:dmarc.dkim@zhdk.ch;- Policy
- p=none
- Subdomains (sp)
- inherits p=none
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc.dkim@zhdk.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
k2 | RSA 2048 | dkim2.mcsv.net |
k3 | RSA 2048 | dkim3.mcsv.net |
selector1 | RSA 1024 | selector1-zhdk-ch._domainkey.zhdkch.onmicrosoft.com |
selector2 | RSA 2048 | selector2-zhdk-ch._domainkey.zhdkch.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.
AppleAdobeMiro
History
- Score 51 · DMARC none
Raw data
zhdk.ch. IN MX 10 zhdk-ch.mail.protection.outlook.com.
zhdk.ch. IN MX 70 smtp.zhdk.ch.
zhdk.ch. IN TXT "v=spf1 mx:zhdk.ch include:spf.refline.ch include:spf.abxsec.com include:spfhard.crsend.com include:spf.protection.outlook.com include:spf.augure.com -all"
_dmarc.zhdk.ch. IN TXT "v=DMARC1; p=none; rua=mailto:dmarc.dkim@zhdk.ch;"