Bühler

buhlergroup.com

Industry: Machinery & electrical
Headquarters: Uzwil, St. Gallen
Type: private
Employees (approx.): 12,500
Checked on: 19 October 2026

70/100Grade B

Protection against forged senders: protected

Points per criterion

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

Industry avg.: 62.2 ▲ 7.8
Canton avg.: 52.3 ▲ 17.7
Overall avg.: 53.5 ▲ 16.5
Rank 24 of 112 in the industry

Findings

!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 · Bühler
Tenant region: EU

Signals (8)

MX	Microsoft 365	`buhlergroup-com.mail.protection.outlook.com`
SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-buhlergroup-com._domainkey.buhlergroup.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Domain verification	Microsoft 365	`MS=ms81864423`
Network	Microsoft 365	`AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation`
Domain verification	Google Workspace	`google-site-verification=6F9SW2IN0iMi236`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
0	`buhlergroup-com.mail.protection.outlook.com`	`52.101.73.120`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US	–
		`52.101.209.28`	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 ip4:194.9.120.0/22 include:spf.protection.outlook.com -all

all: -all
DNS lookups: 1 / 10
Includes: spf.protection.outlook.com
Detected sending services: Microsoft 365
IPv4: 1,024 addresses authorised directly

DMARC

v=DMARC1;p=reject;pct=100;fo=1;rua=mailto:dmarc_agg@vali.email,mailto:postmaster@buhlergroup.com;ruf=mailto:postmaster@buhlergroup.com

Policy: p=reject
Subdomains (sp): inherits p=reject
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc_agg@vali.emailpostmaster@buhlergroup.com
Forensic reports (ruf): postmaster@buhlergroup.com

DKIM

Selector	Key	delegated to
`s1`	RSA 2048	`s1.domainkey.u58003413.wl164.sendgrid.net`
`s2`	RSA 2048	`s2.domainkey.u58003413.wl164.sendgrid.net`
`selector1`	RSA 2048	`selector1-buhlergroup-com._domainkey.buhlergroup.onmicrosoft.com`
`selector2`	RSA 2048	`selector2-buhlergroup-com._domainkey.buhlergroup.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.

Microsoft 365GoogleMeta/FacebookAtlassianAdobeMiroTeamViewer

History

18 October 2026 Score 70 · DMARC reject

All changes of this organisation in the change log →

Raw data

buhlergroup.com. IN MX 0 buhlergroup-com.mail.protection.outlook.com.
buhlergroup.com. IN TXT "v=spf1 ip4:194.9.120.0/22 include:spf.protection.outlook.com -all"
_dmarc.buhlergroup.com. IN TXT "v=DMARC1;p=reject;pct=100;fo=1;rua=mailto:dmarc_agg@vali.email,mailto:postmaster@buhlergroup.com;ruf=mailto:postmaster@buhlergroup.com"

More from this industry

← Back to overview