Tertianum
tertianum.ch
- Industry
- Healthcare
- Headquarters
- Zürich, Zurich
- Type
- private
- Employees (approx.)
- 6,000
- Checked on
- 19 October 2026
87/100Grade A
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) 12 / 15
- TLS-RPT 5 / 5
- Industry avg.: 54.8 ▲ 32.2
- Canton avg.: 53 ▲ 34
- Overall avg.: 53.5 ▲ 33.5
- Rank 5 of 113 in the industry
Findings
-
!DNSSEC not enabled
Without DNSSEC, DNS answers can be forged in transit. DANE requires DNSSEC.
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Provider jurisdiction
- USA · MX: US
- Detection confidence
- 100 / 100
- Microsoft tenant
- Managed · Tertianum Management AG
- Tenant region
- EU
Signals (8)
| MX | Microsoft 365 | tertianum-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-tertianum-ch._domainkey.tertianummanagementag.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=N90CQeUeqjMg8Ce |
| SPF | Swisscom | include:spf.appmail.swisscom.com |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | tertianum-ch.mail.protection.outlook.com | 52.101.185.14 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.187.1 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.185.12 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 include:spf.tertianum.ch include:spf.protection.outlook.com -all- all
-all- DNS lookups
- 6 / 10
- Includes
spf.tertianum.chspf.protection.outlook.com- Detected sending services
- Mailjet, Swisscom, HubSpot, Microsoft 365
DMARC
v=DMARC1; p=reject; rua=mailto:dmarc@wsncke3e.uriports.com; ruf=mailto:dmarc@wsncke3e.uriports.com; fo=1; adkim=r; aspf=r;- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc@wsncke3e.uriports.com- Forensic reports (ruf)
dmarc@wsncke3e.uriports.com- Report services
- URIports
DKIM
| Selector | Key | delegated to |
|---|---|---|
default | RSA 2048 | – |
selector1 | RSA 2048 | selector1-tertianum-ch._domainkey.tertianummanagementag.onmicrosoft.com |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- Mode: enforce · max_age: 2,419,200 s · covers all MX: yes
- mx
tertianum-ch.mail.protection.outlook.com- DANE
- missing
- DNSSEC
- missing
- TLS-RPT
mailto:tlsrpt@wsncke3e.uriports.com- BIMI
- missing
Verified services
From verification records in the domain TXT: services where the domain is verified.
History
- Score 87 · DMARC reject
Raw data
tertianum.ch. IN MX 10 tertianum-ch.mail.protection.outlook.com.
tertianum.ch. IN TXT "v=spf1 include:spf.tertianum.ch include:spf.protection.outlook.com -all"
_dmarc.tertianum.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:dmarc@wsncke3e.uriports.com; ruf=mailto:dmarc@wsncke3e.uriports.com; fo=1; adkim=r; aspf=r;"
_mta-sts.tertianum.ch. IN TXT "v=STSv1; id=20250804100101Z"
_smtp._tls.tertianum.ch. IN TXT "v=TLSRPTv1; rua=mailto:tlsrpt@wsncke3e.uriports.com"