Eldora
eldora.ch
- Industry
- Tourism & hospitality
- Headquarters
- Rolle, Vaud
- Type
- private
- Employees (approx.)
- 1,500
- Checked on
- 19 October 2026
80/100Grade B
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 25 / 25
- DNSSEC 10 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 57.3 ▲ 22.7
- Canton avg.: 58.5 ▲ 21.5
- Overall avg.: 53.5 ▲ 26.5
- Rank 2 of 38 in the industry
Findings
-
!SPF close to the 10-lookup limit (8)
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.
-
!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.
-
iStrict DMARC alignment
adkim=s or aspf=s requires exact domain matches. Secure, but demanding when sending from subdomains.
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Provider jurisdiction
- USA · MX: US
- Detection confidence
- 100 / 100
- Microsoft tenant
- Managed · Eldora
- Tenant region
- EU
Signals (8)
| MX | Microsoft 365 | eldora-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-eldora-ch._domainkey.azureeldora.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms99788731 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=fkDdjeCKv539zZq |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | eldora-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 | |||
52.101.185.13 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 include:spf.protection.outlook.com ip4:18.198.142.13 ip4:18.198.135.138 include:spf.umantis.com ip4:185.237.24.147 include:eldora.neos-hosting.ch -all- all
-all- DNS lookups
- 8 / 10
- Includes
spf.protection.outlook.comspf.umantis.comeldora.neos-hosting.ch- Detected sending services
- Microsoft 365, Mailgun
- IPv4
- 3 addresses authorised directly
DMARC
v=DMARC1;p=reject;pct=100;rua=mailto:dmarcreports@eldora.ch,mailto:bf4e586a1f@rua.easydmarc.eu;ruf=mailto:bf4e586a1f@ruf.easydmarc.eu;ri=86400;aspf=s;fo=1;- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / strict
- Aggregate reports (rua)
dmarcreports@eldora.chbf4e586a1f@rua.easydmarc.eu- Forensic reports (ruf)
bf4e586a1f@ruf.easydmarc.eu- Report services
- EasyDMARC
DKIM
| Selector | Key | delegated to |
|---|---|---|
selector1 | RSA 1024 | selector1-eldora-ch._domainkey.azureeldora.onmicrosoft.com |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- missing
- DANE
- missing
- DNSSEC
- active
- TLS-RPT
- missing
- BIMI
- missing
Verified services
From verification records in the domain TXT: services where the domain is verified.
Microsoft 365Google
History
- Score 80 · DMARC reject
Raw data
eldora.ch. IN MX 10 eldora-ch.mail.protection.outlook.com.
eldora.ch. IN TXT "v=spf1 include:spf.protection.outlook.com ip4:18.198.142.13 ip4:18.198.135.138 include:spf.umantis.com ip4:185.237.24.147 include:eldora.neos-hosting.ch -all"
_dmarc.eldora.ch. IN TXT "v=DMARC1;p=reject;pct=100;rua=mailto:dmarcreports@eldora.ch,mailto:bf4e586a1f@rua.easydmarc.eu;ruf=mailto:bf4e586a1f@ruf.easydmarc.eu;ri=86400;aspf=s;fo=1;"