Thommen Medical
thommenmedical.com
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.: 59.8 ▼ 8.8
- Canton avg.: 47.9 ▲ 3.1
- Overall avg.: 53.5 ▼ 2.5
- Rank 21 of 26 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 (9)
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
- Detection confidence
- 100 / 100
- Microsoft tenant
- Managed · Thommen Medical AG
- Tenant region
- EU
Signals (8)
| MX | Microsoft 365 | thommenmedical-com.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-thommenmedical-com._domainkey.tmcloud.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms91085241 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=Tw_b3JLpEiSLeMf |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | thommenmedical-com.mail.protection.outlook.com | 52.101.103.140 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.209.28 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.73.155 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 include:_spf.mlsend.com ip4:93.187.209.218 ip4:93.187.214.209 ip4:80.147.226.93 ip4:93.187.209.222 ip4:5.148.188.18 include:spf.protection.outlook.com include:zcsend.net include:one.zoho.eu include:spf.protection.cyon.net include:_spf.rexx-systems.com -all- all
-all- DNS lookups
- 9 / 10
- Includes
_spf.mlsend.comspf.protection.outlook.comzcsend.netone.zoho.euspf.protection.cyon.net_spf.rexx-systems.com- Detected sending services
- Microsoft 365, Zoho
- IPv4
- 5 addresses authorised directly
DMARC
v=DMARC1; p=none; rua=mailto:dmarcreports@thommenmedical.com; ruf=mailto:dmarcreports@thommenmedical.com; fo=1- Policy
- p=none
- Subdomains (sp)
- inherits p=none
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarcreports@thommenmedical.com- Forensic reports (ruf)
dmarcreports@thommenmedical.com
DKIM
| Selector | Key | delegated to |
|---|---|---|
default | RSA 2048 | – |
m1 | RSA 1024 | – |
selector1 | RSA 2048 | selector1-thommenmedical-com._domainkey.tmcloud.onmicrosoft.com |
selector2 | RSA 2048 | selector2-thommenmedical-com._domainkey.tmcloud.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 365GoogleBrevo
History
- Score 51 · DMARC none
Raw data
thommenmedical.com. IN MX 10 thommenmedical-com.mail.protection.outlook.com.
thommenmedical.com. IN TXT "v=spf1 include:_spf.mlsend.com ip4:93.187.209.218 ip4:93.187.214.209 ip4:80.147.226.93 ip4:93.187.209.222 ip4:5.148.188.18 include:spf.protection.outlook.com include:zcsend.net include:one.zoho.eu include:spf.protection.cyon.net include:_spf.rexx-systems.com -all"
_dmarc.thommenmedical.com. IN TXT "v=DMARC1; p=none; rua=mailto:dmarcreports@thommenmedical.com; ruf=mailto:dmarcreports@thommenmedical.com; fo=1"