Flughafen Zürich
flughafen-zuerich.ch
- Industry
- Transport & logistics
- Headquarters
- Kloten, Zurich
- Type
- listed
- Employees (approx.)
- 1,900
- 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.: 59.9 ▲ 10.1
- Canton avg.: 53 ▲ 17
- Overall avg.: 53.5 ▲ 16.5
- Rank 19 of 67 in the industry
Findings
-
!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
- Upstream gateway
- Proofpoint
- Provider jurisdiction
- USA · MX: US
- Detection confidence
- 99 / 100
- Microsoft tenant
- Managed · zurich-airport.com
- Tenant region
- EU
Signals (5)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| DKIM | Microsoft 365 | selector1 → selector1-flughafenzuerich-ch02c._domainkey.zurichairport.onmicrosoft.com |
| Domain verification | Microsoft 365 | MS=ms39849608 |
| Domain verification | Google Workspace | google-site-verification=JCSrA7BxAPKn1GU |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 20 | mxa-00521204.gslb.pphosted.com | 66.159.233.95 | AS52129 PROOFPOINT-ASN-EU - Proofpoint, Inc. | US | – |
| 20 | mxb-00521204.gslb.pphosted.com | 66.159.233.95 | AS52129 PROOFPOINT-ASN-EU - Proofpoint, Inc. | US | – |
SPF
v=spf1 mx include:spf.protection.outlook.com include:spf-00521202.pphosted.com include:spf-00521204.pphosted.com ip4:194.146.215.96 ip4:194.146.215.114 -all- all
-all- DNS lookups
- 4 / 10
- Includes
spf.protection.outlook.comspf-00521202.pphosted.comspf-00521204.pphosted.com- Detected sending services
- Microsoft 365, Proofpoint
- IPv4
- 2 addresses authorised directly
DMARC
v=DMARC1;p=reject;rua=mailto:5457418b6f@rua.easydmarc.eu;ruf=mailto:5457418b6f@ruf.easydmarc.eu;fo=1;- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
5457418b6f@rua.easydmarc.eu- Forensic reports (ruf)
5457418b6f@ruf.easydmarc.eu- Report services
- EasyDMARC
DKIM
| Selector | Key | delegated to |
|---|---|---|
selector1 | RSA 2048 | selector1-flughafenzuerich-ch02c._domainkey.zurichairport.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.
Microsoft 365GoogleApple
History
- Score 70 · DMARC reject
Raw data
flughafen-zuerich.ch. IN MX 20 mxa-00521204.gslb.pphosted.com.
flughafen-zuerich.ch. IN MX 20 mxb-00521204.gslb.pphosted.com.
flughafen-zuerich.ch. IN TXT "v=spf1 mx include:spf.protection.outlook.com include:spf-00521202.pphosted.com include:spf-00521204.pphosted.com ip4:194.146.215.96 ip4:194.146.215.114 -all"
_dmarc.flughafen-zuerich.ch. IN TXT "v=DMARC1;p=reject;rua=mailto:5457418b6f@rua.easydmarc.eu;ruf=mailto:5457418b6f@ruf.easydmarc.eu;fo=1;"