Dieci
dieci.ch
- Industry
- Tourism & hospitality
- Headquarters
- Rapperswil-Jona, St. Gallen
- Type
- private
- Employees (approx.)
- 600
- Checked on
- 19 October 2026
Protection against forged senders: not protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 0 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 57.3 ▼ 12.3
- Canton avg.: 52.3 ▼ 7.3
- Overall avg.: 53.5 ▼ 8.5
- Rank 33 of 38 in the industry
Findings
-
✕No DMARC record
Without DMARC no receiver reliably rejects forged mail in the domain's name, and the organisation receives no abuse reports.
-
!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 · Dieci AG
- Tenant region
- EU
Signals (6)
| MX | Microsoft 365 | dieci-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.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=C_5Cx9iJjiGq5TL |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 0 | dieci-ch.mail.protection.outlook.com | 52.101.73.153 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.91.156 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.103.162 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 +ip4:62.12.149.0/24 +ip4:185.46.57.76 include:spf.protection.outlook.com include:sendgrid.net include:spf-de.emailsignatures365.com -all- all
-all- DNS lookups
- 4 / 10
- Includes
spf.protection.outlook.comsendgrid.netspf-de.emailsignatures365.com- Detected sending services
- Microsoft 365, SendGrid
- IPv4
- 257 addresses authorised directly
DMARC
Without DMARC no receiver reliably rejects forged mail in the domain's name, and the organisation receives no abuse reports.
DKIM
| Selector | Key | delegated to |
|---|---|---|
s1 | RSA 2048 | s1.domainkey.u2294825.wl076.sendgrid.net |
s2 | RSA 1024 | s2.domainkey.u2294825.wl076.sendgrid.net |
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.
GoogleAppleMeta/Facebook
History
- Score 45 · DMARC -
Raw data
dieci.ch. IN MX 0 dieci-ch.mail.protection.outlook.com.
dieci.ch. IN TXT "v=spf1 +ip4:62.12.149.0/24 +ip4:185.46.57.76 include:spf.protection.outlook.com include:sendgrid.net include:spf-de.emailsignatures365.com -all"