Rheinmetall Air Defence

rheinmetall.com

Industry: Machinery & electrical
Headquarters: Zürich, Zurich
Type: private
Employees (approx.): 800
Checked on: 19 October 2026

29/100Grade D

Protection against forged senders: not protected (monitoring only)

Points per criterion

MX 10 / 10
SPF 13 / 15
DKIM 0 / 20
DMARC 6 / 25
DNSSEC 0 / 10
Transport (MTA-STS/DANE) 0 / 15
TLS-RPT 0 / 5

Industry avg.: 62.2 ▼ 33.2
Canton avg.: 53 ▼ 24
Overall avg.: 53.5 ▼ 24.5
Rank 110 of 112 in the industry

Findings

✕DMARC in monitoring mode only (p=none)

p=none provides reports but does not reject a single forgery. The goal is p=reject.
!SPF close to the 10-lookup limit (8)

One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
!No DKIM key found

No key was found under more than 100 common selectors. A custom selector is possible, but without DKIM there is no cryptographic sender check.
!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: Self-hosted / other
Provider jurisdiction: Europe · MX: GB
Detection confidence: 85 / 100
Microsoft tenant: Federated · Rheinmetall AG
Tenant region: EU
Federated via: adfs.rheinmetall.com

Signals (3)

Domain verification	Microsoft 365	`MS=ms78903920`
Domain verification	Google Workspace	`google-site-verification=vR1FZ9ktZ4ug1oJ`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Federated)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`smtp01.rheinmetall.com`	`213.61.254.53`	AS8220 COLT - COLT Technology Services Group Limited	GB	–
20	`smtp02.rheinmetall.com`	`213.61.254.55`	AS8220 COLT - COLT Technology Services Group Limited	GB	–

SPF

v=spf1 mx ip4:149.154.96.219 ip4:149.154.96.220 ip4:217.24.207.146 include:spfa.myconvento.com include:_spf_euwest1.prod.hydra.sophos.com include:_spf-dc33.sapsf.eu include:ispgateway.de include:_spf.eu.mailgun.org include:weg-bounce.esker.net ~all

all: ~all
DNS lookups: 8 / 10
Includes: spfa.myconvento.com_spf_euwest1.prod.hydra.sophos.com_spf-dc33.sapsf.euispgateway.de_spf.eu.mailgun.orgweg-bounce.esker.net
Detected sending services: Mailgun
IPv4: 3 addresses authorised directly

DMARC

v=DMARC1; p=none; rua=mailto:rua@rheinmetall.com; ruf=mailto:ruf@rheinmetall.com; fo=1;

Policy: p=none
Subdomains (sp): inherits p=none
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): rua@rheinmetall.com
Forensic reports (ruf): ruf@rheinmetall.com

DKIM

No DKIM key found

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 365GoogleAppleAtlassianAdobeCisco Webex

History

19 October 2026 Score 29 · DMARC none

All changes of this organisation in the change log →

Raw data

rheinmetall.com. IN MX 10 smtp01.rheinmetall.com.
rheinmetall.com. IN MX 20 smtp02.rheinmetall.com.
rheinmetall.com. IN TXT "v=spf1 mx ip4:149.154.96.219 ip4:149.154.96.220 ip4:217.24.207.146 include:spfa.myconvento.com include:_spf_euwest1.prod.hydra.sophos.com include:_spf-dc33.sapsf.eu include:ispgateway.de include:_spf.eu.mailgun.org include:weg-bounce.esker.net ~all"
_dmarc.rheinmetall.com. IN TXT "v=DMARC1; p=none; rua=mailto:rua@rheinmetall.com; ruf=mailto:ruf@rheinmetall.com; fo=1;"

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