Swiss Krono
swisskrono.com
- Industry
- Building materials
- Headquarters
- Menznau, Lucerne
- Type
- private
- Employees (approx.)
- 5,000
- 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.: 60.3 ▲ 9.7
- Canton avg.: 56.6 ▲ 13.4
- Overall avg.: 53.5 ▲ 16.5
- Rank 7 of 20 in the industry
Findings
-
!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 · SWISS KRONO GROUP
- Tenant region
- EU
Signals (8)
| MX | Microsoft 365 | swisskrono-com.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-swisskrono-com._domainkey.swisskrono.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms93482055 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=-d_z1XV6Pc7RADZ |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 0 | swisskrono-com.mail.protection.outlook.com | 52.101.103.39 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.68.8 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.68.15 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 include:spf.protection.outlook.com include:spf.exclaimer.net ip4:82.177.58.1 ip4:82.177.58.3 ip4:80.51.166.201 ip4:217.6.138.154 ip4:109.71.74.116 ip4:83.246.110.87 ip4:37.128.179.137 ip4:50.45.233.180 ip6:2a05:cc00::74:116:10 -all- all
-all- DNS lookups
- 2 / 10
- Includes
spf.protection.outlook.comspf.exclaimer.net- Detected sending services
- Microsoft 365
- IPv4
- 8 addresses authorised directly
DMARC
v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:5a2f0ce6@inbox.ondmarc.com,mailto:a3efcd3fa707465abb966f6d6c0683ad@dmarc-reports.cloudflare.net; ruf=mailto:5a2f0ce6@inbox.ondmarc.com;- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
5a2f0ce6@inbox.ondmarc.coma3efcd3fa707465abb966f6d6c0683ad@dmarc-reports.cloudflare.net- Forensic reports (ruf)
5a2f0ce6@inbox.ondmarc.com- Report services
- Red Sift OnDMARC, Cloudflare
DKIM
| Selector | Key | delegated to |
|---|---|---|
selector1 | RSA 2048 | selector1-swisskrono-com._domainkey.swisskrono.onmicrosoft.com |
selector2 | RSA 1024 | selector2-swisskrono-com._domainkey.swisskrono.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 365GoogleAppleAtlassianLinkedIn
History
- Score 70 · DMARC reject
Raw data
swisskrono.com. IN MX 0 swisskrono-com.mail.protection.outlook.com.
swisskrono.com. IN TXT "v=spf1 include:spf.protection.outlook.com include:spf.exclaimer.net ip4:82.177.58.1 ip4:82.177.58.3 ip4:80.51.166.201 ip4:217.6.138.154 ip4:109.71.74.116 ip4:83.246.110.87 ip4:37.128.179.137 ip4:50.45.233.180 ip6:2a05:cc00::74:116:10 -all"
_dmarc.swisskrono.com. IN TXT "v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:5a2f0ce6@inbox.ondmarc.com,mailto:a3efcd3fa707465abb966f6d6c0683ad@dmarc-reports.cloudflare.net; ruf=mailto:5a2f0ce6@inbox.ondmarc.com;"