Kanton Graubünden
gr.ch
- Industry
- Cantonal administrations
- Headquarters
- Chur, Grisons
- Type
- public
- Checked on
- 19 October 2026
48/100Grade C
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 13 / 15
- DKIM 0 / 20
- DMARC 25 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 55.7 ▼ 7.7
- Canton avg.: 47.2 ▲ 0.8
- Overall avg.: 53.5 ▼ 5.5
- Rank 20 of 26 in the industry
Findings
-
!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.
Who runs the mail?
- Mailbox provider
- Self-hosted / other
- Provider jurisdiction
- Switzerland · MX: CH
- Detection confidence
- 85 / 100
- Microsoft tenant
- Managed · Kanton Graubünden
- Tenant region
- EU
Signals (5)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| Domain verification | Microsoft 365 | MS=ms73768792 |
| Domain verification | Google Workspace | google-site-verification=ns6Fj6QWT_7gnC- |
| SPF | Amazon | include:amazonses.com |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | ktvmx03.mail.admin.ch | 162.23.22.171 | AS33845 SWISSGOV - SWISSGOV | CH | – |
| 10 | ktvmx04.mail.admin.ch | 162.23.23.171 | AS33845 SWISSGOV - SWISSGOV | CH | – |
| 10 | ktvmx01.mail.admin.ch | 162.23.22.161 | AS33845 SWISSGOV - SWISSGOV | CH | – |
| 10 | ktvmx02.mail.admin.ch | 162.23.23.161 | AS33845 SWISSGOV - SWISSGOV | CH | – |
SPF
v=spf1 include:_spfgroupa.gr.ch include:_netblocks1.admin.ch include:_netblocks2.admin.ch include:_netblocks3.admin.ch include:_netblocks4.admin.ch include:amazonses.com include:spf.protection.outlook.com ~all- all
~all- DNS lookups
- 7 / 10
- Includes
_spfgroupa.gr.ch_netblocks1.admin.ch_netblocks2.admin.ch_netblocks3.admin.ch_netblocks4.admin.chamazonses.comspf.protection.outlook.com- Detected sending services
- Amazon SES, Microsoft 365
DMARC
v=DMARC1; p=reject; rua=mailto:eb501908@in.mailhardener.com,mailto:DMARC@gr.ch- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
eb501908@in.mailhardener.comDMARC@gr.ch- Report services
- Mailhardener
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 365GoogleAdobe
History
- Score 48 · DMARC reject
Raw data
gr.ch. IN MX 10 ktvmx03.mail.admin.ch.
gr.ch. IN MX 10 ktvmx04.mail.admin.ch.
gr.ch. IN MX 10 ktvmx01.mail.admin.ch.
gr.ch. IN MX 10 ktvmx02.mail.admin.ch.
gr.ch. IN TXT "v=spf1 include:_spfgroupa.gr.ch include:_netblocks1.admin.ch include:_netblocks2.admin.ch include:_netblocks3.admin.ch include:_netblocks4.admin.ch include:amazonses.com include:spf.protection.outlook.com ~all"
_dmarc.gr.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:eb501908@in.mailhardener.com,mailto:DMARC@gr.ch"