Engadin St. Moritz Mountains

mountains.ch

Industry
Tourism & hospitality
Headquarters
St. Moritz, Grisons
Type
private
Employees (approx.)
300
Checked on
19 October 2026
64/100Grade C

Protection against forged senders: largely protected, with a gap: subdomains not protected (sp=none)

Points per criterion

  • MX 10 / 10
  • SPF 15 / 15
  • DKIM 20 / 20
  • DMARC 19 / 25
  • DNSSEC 0 / 10
  • Transport (MTA-STS/DANE) 0 / 15
  • TLS-RPT 0 / 5

Findings

  • !SPF authorises very large IP ranges (86,019)

    The SPF record itself lists IPv4 ranges with more than 65,000 addresses. The wider the range, the easier it is for third parties to send from an authorised network.

  • !Subdomains unprotected (sp=none)

    The main domain is protected, but subdomains such as invoice.company.ch can still be forged.

  • !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.

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider
Microsoft 365
Provider jurisdiction
USA · MX: US
Detection confidence
100 / 100
Microsoft tenant
Managed · Engadin St.Moritz
Tenant region
EU
Signals (6)
MXMicrosoft 365mountains-ch.mail.protection.outlook.com
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector1 → selector1-mountains-ch._domainkey.engadin.onmicrosoft.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
0 mountains-ch.mail.protection.outlook.com 52.101.185.12 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US –
52.101.185.13 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US
52.101.185.14 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US

SPF

v=spf1 mx include:spf.cs2.ch include:spf-westeu.emailsignatures365.com include:spf.protection.outlook.com ip4:135.181.2.248 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16 ip4:20.203.233.165 ip4:51.103.239.17 -all
all
-all
DNS lookups
5 / 10
Includes
spf.cs2.chspf-westeu.emailsignatures365.comspf.protection.outlook.com
Detected sending services
Microsoft 365
IPv4
86,019 addresses authorised directly

DMARC

v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:cloudalerts@cooqie.ch;ruf=mailto:cloudalerts@cooqie.ch
Policy
p=quarantine
Subdomains (sp)
none
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
cloudalerts@cooqie.ch
Forensic reports (ruf)
cloudalerts@cooqie.ch

DKIM

SelectorKeydelegated to
k2 RSA 2048 dkim2.mcsv.net
k3 RSA 2048 dkim3.mcsv.net
selector1 RSA 1024 selector1-mountains-ch._domainkey.engadin.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.

Apple

History

  • Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data
mountains.ch. IN MX 0 mountains-ch.mail.protection.outlook.com.
mountains.ch. IN TXT "v=spf1 mx include:spf.cs2.ch include:spf-westeu.emailsignatures365.com include:spf.protection.outlook.com ip4:135.181.2.248 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16 ip4:20.203.233.165 ip4:51.103.239.17 -all"
_dmarc.mountains.ch. IN TXT "v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:cloudalerts@cooqie.ch;ruf=mailto:cloudalerts@cooqie.ch"

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