PostAuto

postauto.ch

Industry
Transport & logistics
Headquarters
Bern, Bern
Type
public
Employees (approx.)
4,000
Checked on
19 October 2026
35/100Grade D

Protection against forged senders: not protected

Points per criterion

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

Findings

  • ✕No DMARC record

    Without DMARC no receiver reliably rejects forged mail in the domain's name, and the organisation receives no abuse reports.

  • !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.

  • !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
Switzerland · MX: CH
Detection confidence
85 / 100
Microsoft tenant
Managed · Post CH AG
Tenant region
EU
Signals (3)
Domain verificationMicrosoft 365MS=ms45254085
Domain verificationGoogle Workspacegoogle-site-verification=EfKmyJMDeXUMlrD
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
40 mx2.post.ch 194.41.216.135 AS12511 CH-POSTNETZ - Die Schweizerische Post AG CH –
40 mx1.post.ch 194.41.152.137 AS12511 CH-POSTNETZ - Die Schweizerische Post AG CH –

SPF

v=spf1 mx a:mx3.post.ch a:relay4.postauto.ch a:relay5.postauto.ch a:relay6.postauto.ch a:mailout.ip-plus.net ip4:195.65.218.36 include:_edge.post.ch -all
all
-all
DNS lookups
7 / 10
Includes
_edge.post.ch
IPv4
1 addresses authorised directly

DMARC

Without DMARC no receiver reliably rejects forged mail in the domain's name, and the organisation receives no abuse reports.

DKIM

No DKIM key found

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 365GoogleAppleAtlassianAdobeMiroFigmaAutodesk

History

  • Score 35 · DMARC -

All changes of this organisation in the change log →

Raw data
postauto.ch. IN MX 40 mx2.post.ch.
postauto.ch. IN MX 40 mx1.post.ch.
postauto.ch. IN TXT "v=spf1 mx a:mx3.post.ch a:relay4.postauto.ch a:relay5.postauto.ch a:relay6.postauto.ch a:mailout.ip-plus.net ip4:195.65.218.36 include:_edge.post.ch -all"

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