V-Zug

vzug.com

Industry: Machinery & electrical
Headquarters: Zug, Zug
Type: listed
Employees (approx.): 2,100
Checked on: 19 October 2026

72/100Grade B

Protection against forged senders: largely protected

Points per criterion

MX 10 / 10
SPF 13 / 15
DKIM 20 / 20
DMARC 19 / 25
DNSSEC 10 / 10
Transport (MTA-STS/DANE) 0 / 15
TLS-RPT 0 / 5

Industry avg.: 62.2 ▲ 9.8
Canton avg.: 63.2 ▲ 8.8
Overall avg.: 53.5 ▲ 18.5
Rank 19 of 112 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.

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 · V-ZUG AG
Tenant region: EU

Signals (9)

MX	Microsoft 365	`vzug-com.mail.protection.outlook.com`
SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-vzug-com._domainkey.metallzug.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Domain verification	Microsoft 365	`MS=ms29450233`
Network	Microsoft 365	`AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation`
Domain verification	Google Workspace	`google-site-verification=9ZGal3siBGHY1QK`
SPF	Amazon	`include:amazonses.com`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`vzug-com.mail.protection.outlook.com`	`52.101.91.156`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US	–
		`52.101.73.155`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US
		`52.101.73.145`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US

SPF

v=spf1 include:spf.protection.outlook.com include:spf1.vzug.com include:spf2.vzug.com include:spf3.vzug.com ~all

all: ~all
DNS lookups: 8 / 10
Includes: spf.protection.outlook.comspf1.vzug.comspf2.vzug.comspf3.vzug.com
Detected sending services: Microsoft 365, SendGrid, Atlassian, Amazon SES

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc.rua@vzug.com; ruf=mailto:dmarc.ruf@vzug.com;

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

DKIM

Selector	Key	delegated to
`k2`	RSA 2048	`dkim2.mcsv.net`
`k3`	RSA 2048	`dkim3.mcsv.net`
`mail`	RSA 1024	–
`mailjet`	RSA 1024	–
`s1`	RSA 2048	`s1.domainkey.u56147727.wl228.sendgrid.net`
`s2`	RSA 2048	`s2.domainkey.u56147727.wl228.sendgrid.net`
`selector1`	RSA 2048	`selector1-vzug-com._domainkey.metallzug.onmicrosoft.com`
`selector2`	RSA 2048	`selector2-vzug-com._domainkey.metallzug.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 365GoogleAppleMeta/FacebookAtlassianMiroBrevoPinterest

History

18 October 2026 Score 72 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

vzug.com. IN MX 10 vzug-com.mail.protection.outlook.com.
vzug.com. IN TXT "v=spf1 include:spf.protection.outlook.com include:spf1.vzug.com include:spf2.vzug.com include:spf3.vzug.com ~all"
_dmarc.vzug.com. IN TXT "v=DMARC1; p=quarantine; rua=mailto:dmarc.rua@vzug.com; ruf=mailto:dmarc.ruf@vzug.com;"

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