Beau-Rivage Palace

brp.ch

Industry
Tourism & hospitality
Headquarters
Lausanne, Vaud
Type
private
Employees (approx.)
450
Checked on
19 October 2026
65/100Grade B

Protection against forged senders: protected

Points per criterion

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

Findings

  • ✕SPF exceeds 10 DNS lookups (11)

    More than ten lookups (include, a, mx, ptr, exists, redirect) cause a permerror; many receivers then treat SPF as failed.

  • !External report receiver not authorised

    The authorisation record for an external rua domain is missing (RFC 7489 §7.1); many receivers then send no reports.

  • !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.

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 · Sandoz Foundation Hotels
Tenant region
EU
Signals (8)
MXMicrosoft 365brp-ch.mail.protection.outlook.com
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector1 → selector1-brp-ch._domainkey.sandozhotels.onmicrosoft.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
Domain verificationMicrosoft 365MS=ms58461910
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Domain verificationGoogle Workspacegoogle-site-verification=Jcr_vqW61SZyux2
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
0 brp-ch.mail.protection.outlook.com 52.101.91.159 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US –
52.101.103.143 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US
52.101.181.156 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US

SPF

v=spf1 ip4:51.107.58.163 ip4:212.243.58.242 ip4:63.241.216.16 ip4:20.208.5.134 ip4:151.193.18.41 include:spf.synxis.com include:spf1.sandoz-hotels.ch include:spf.protection.outlook.com include:serenata-services.com -all
all
-all
DNS lookups
11 / 10
Includes
spf.synxis.comspf1.sandoz-hotels.chspf.protection.outlook.comserenata-services.com
Detected sending services
Salesforce, SendGrid, Microsoft 365
IPv4
5 addresses authorised directly

DMARC

v=DMARC1; p=reject; rua=mailto:dmarc@sandoz-hotels.ch;
Policy
p=reject
Subdomains (sp)
inherits p=reject
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
dmarc@sandoz-hotels.ch

DKIM

SelectorKeydelegated to
k1 RSA 1024 –
selector1 RSA 1024 selector1-brp-ch._domainkey.sandozhotels.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 65 · DMARC reject

All changes of this organisation in the change log →

Raw data
brp.ch. IN MX 0 brp-ch.mail.protection.outlook.com.
brp.ch. IN TXT "v=spf1 ip4:51.107.58.163 ip4:212.243.58.242 ip4:63.241.216.16 ip4:20.208.5.134 ip4:151.193.18.41 include:spf.synxis.com include:spf1.sandoz-hotels.ch include:spf.protection.outlook.com include:serenata-services.com -all"
_dmarc.brp.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:dmarc@sandoz-hotels.ch;"

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