Belimo

belimo.ch

Industry: Machinery & electrical
Headquarters: Hinwil, Zurich
Type: listed
Employees (approx.): 2,300
Checked on: 19 October 2026

64/100Grade C

Protection against forged senders: largely protected

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

Industry avg.: 62.2 ▲ 1.8
Canton avg.: 53 ▲ 11
Overall avg.: 53.5 ▲ 10.5
Rank 52 of 112 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.
iBIMI logo published

A brand logo for mail clients is published (without a certificate large providers do not show it).

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider: Microsoft 365
Upstream gateway: Proofpoint
Provider jurisdiction: USA · MX: US
Detection confidence: 99 / 100
Microsoft tenant: Managed · BELIMO Automation AG
Tenant region: EU

Signals (6)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-belimo-ch._domainkey.belimoag.onmicrosoft.com`
Domain verification	Microsoft 365	`MS=ms84626340`
Domain verification	Google Workspace	`google-site-verification=GNwVLQzbR4DxmNm`
Domain verification	Amazon	`amazonses:5QqsmwEukNtDGrhupGxTy+sb47gDh7`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`mxa-00228d01.gslb.pphosted.com`	`143.55.144.181`	AS52129 PROOFPOINT-ASN-EU - Proofpoint, Inc.	US	–
10	`mxb-00228d01.gslb.pphosted.com`	`205.220.185.232`	AS52129 PROOFPOINT-ASN-EU - Proofpoint, Inc.	US	–

SPF

v=spf1 mx ip4:61.9.168.143 ip4:217.73.9.208/28  include:spf.protection.outlook.com include:spf.sendinblue.com include:spf-00228d01.pphosted.com include:_spf1.belimo.ch -all

all: -all
DNS lookups: 7 / 10
Includes: spf.protection.outlook.comspf.sendinblue.comspf-00228d01.pphosted.com_spf1.belimo.ch
Detected sending services: Microsoft 365, Brevo, Proofpoint, Mailjet
IPv4: 17 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc@belimo.ch; ruf=mailto:dmarc@belimo.ch; fo=1; pct=100; sp=quarantine; ri=86400

Policy: p=quarantine
Subdomains (sp): quarantine
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc@belimo.ch
Forensic reports (ruf): dmarc@belimo.ch

DKIM

Selector	Key	delegated to
`mail`	RSA 1024	–
`mailjet`	RSA 1024	–
`selector1`	RSA 2048	`selector1-belimo-ch._domainkey.belimoag.onmicrosoft.com`
`selector2`	RSA 2048	`selector2-belimo-ch._domainkey.belimoag.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: without certificate · Logo

Verified services

From verification records in the domain TXT: services where the domain is verified.

Microsoft 365GoogleAppleAtlassianAmazon SESMiroBrevo

History

18 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

belimo.ch. IN MX 10 mxa-00228d01.gslb.pphosted.com.
belimo.ch. IN MX 10 mxb-00228d01.gslb.pphosted.com.
belimo.ch. IN TXT "v=spf1 mx ip4:61.9.168.143 ip4:217.73.9.208/28  include:spf.protection.outlook.com include:spf.sendinblue.com include:spf-00228d01.pphosted.com include:_spf1.belimo.ch -all"
_dmarc.belimo.ch. IN TXT "v=DMARC1; p=quarantine; rua=mailto:dmarc@belimo.ch; ruf=mailto:dmarc@belimo.ch; fo=1; pct=100; sp=quarantine; ri=86400"
default._bimi.belimo.ch. IN TXT "v=BIMI1; l=https://www.belimo.com/mam/corporate-communications/pictures-graphics/logos/company/belimo_logo_blackorange_1024.svg"

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