Gemeinde Gränichen
graenichen.ch
- Industry
- Municipalities
- Headquarters
- Gränichen, Aargau
- Type
- public
- Population
- 8,699
- FSO no.
- 4006
- Checked on
- 19 October 2026
82/100Grade B
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 25 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 12 / 15
- TLS-RPT 0 / 5
- Industry avg.: 50.9 ▲ 31.1
- Canton avg.: 57.3 ▲ 24.7
- Overall avg.: 53.5 ▲ 28.5
- Rank 35 of 2077 in the industry
Findings
-
!DKIM key below 2048 bits
RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.
-
!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.
-
iDANE active (TLSA with DNSSEC)
All MX hosts publish TLSA records secured by DNSSEC.
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Upstream gateway
- SEPPmail
- Provider jurisdiction
- USA · MX: CH
- Detection confidence
- 99 / 100
- Microsoft tenant
- Managed · graenichen.ch
- Tenant region
- EU
Signals (4)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| DKIM | Microsoft 365 | selector1 → selector1-graenichen-ch._domainkey.graenichench.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 0 | graenichen-ch.gate.seppmail.cloud | 86.119.35.35 | AS559 Switch - SWITCH | CH | ✓ DNSSEC |
217.20.196.81 | AS24951 EVERYWARE-NET - EveryWare AG | CH |
SPF
v=spf1 include:spf.protection.outlook.com include:_spf.talus.ch include:_spf.ch.seppmail.cloud include:_spf.i-web.ch -all- all
-all- DNS lookups
- 4 / 10
- Includes
spf.protection.outlook.com_spf.talus.ch_spf.ch.seppmail.cloud_spf.i-web.ch- Detected sending services
- Microsoft 365, SEPPmail
DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc@graenichen.ch; ruf=mailto:dmarc@graenichen.ch; rf=afrf; pct=100;- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc@graenichen.ch- Forensic reports (ruf)
dmarc@graenichen.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
default | RSA 2048 | – |
selector1 | RSA 1024 | selector1-graenichen-ch._domainkey.graenichench.onmicrosoft.com |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- missing
- DANE
- active
- DNSSEC
- missing
- TLS-RPT
- missing
- BIMI
- missing
Verified services
From verification records in the domain TXT: services where the domain is verified.
DigiCert
History
- Score 82 · DMARC reject
Raw data
graenichen.ch. IN MX 0 graenichen-ch.gate.seppmail.cloud.
graenichen.ch. IN TXT "v=spf1 include:spf.protection.outlook.com include:_spf.talus.ch include:_spf.ch.seppmail.cloud include:_spf.i-web.ch -all"
_dmarc.graenichen.ch. IN TXT "v=DMARC1; p=reject; fo=1; rua=mailto:dmarc@graenichen.ch; ruf=mailto:dmarc@graenichen.ch; rf=afrf; pct=100;"