Die Post
post.ch
- Industry
- Transport & logistics
- Headquarters
- Bern, Bern
- Type
- public
- Employees (approx.)
- 46,000
- Checked on
- 19 October 2026
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 0 / 20
- DMARC 25 / 25
- DNSSEC 10 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 59.9 ▲ 0.1
- Canton avg.: 53.1 ▲ 6.9
- Overall avg.: 53.5 ▲ 6.5
- Rank 38 of 67 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.
-
!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.
-
iBIMI with mark certificate (VMC/CMC)
Logo with a verified mark certificate, shown by Gmail and Apple Mail among others. Requires DMARC enforcement.
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 (2)
| Domain verification | Google Workspace | google-site-verification=m7U6hLKeG0ZpZFE |
|---|---|---|
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 40 | mx1.post.ch | 194.41.152.137 | AS12511 CH-POSTNETZ - Die Schweizerische Post AG | CH | – |
| 40 | mx2.post.ch | 194.41.216.135 | AS12511 CH-POSTNETZ - Die Schweizerische Post AG | CH | – |
SPF
v=spf1 mx a:mx3.post.ch a:mx4.post.ch a:mx5.post.ch a:relay1.post.ch a:relay2.post.ch include:_edge.post.ch a:mail.postcardcreator.post.ch -all- all
-all- DNS lookups
- 8 / 10
- Includes
_edge.post.ch
DMARC
v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc-reports@post.ch; ruf=mailto:dmarc-reports@post.ch; rf=afrf; pct=100; ri=86400; fo=1;- Policy
- p=reject
- Subdomains (sp)
- reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc-reports@post.ch- Forensic reports (ruf)
dmarc-reports@post.ch
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
- VMC/CMC ✓ · Logo
Verified services
From verification records in the domain TXT: services where the domain is verified.
GoogleAppleAtlassianGlobalSignMiroAutodesk
History
- Score 60 · DMARC reject
Raw data
post.ch. IN MX 40 mx1.post.ch.
post.ch. IN MX 40 mx2.post.ch.
post.ch. IN TXT "v=spf1 mx a:mx3.post.ch a:mx4.post.ch a:mx5.post.ch a:relay1.post.ch a:relay2.post.ch include:_edge.post.ch a:mail.postcardcreator.post.ch -all"
_dmarc.post.ch. IN TXT "v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc-reports@post.ch; ruf=mailto:dmarc-reports@post.ch; rf=afrf; pct=100; ri=86400; fo=1;"
default._bimi.post.ch. IN TXT "v=BIMI1; l=https://www.post.ch/static/InxmailCloud/System/BIMI/die_schweizerische_post_ag_1230733476.svg; a=…"