Gemeinde Grindel

grindel.ch

Industry
Municipalities
Headquarters
Grindel, Solothurn
Type
public
Population
508
FSO no.
2617
Checked on
19 October 2026
44/100Grade C

Protection against forged senders: largely protected, with a gap: subdomains not protected (sp=none)

Points per criterion

  • MX 10 / 10
  • SPF 15 / 15
  • DKIM 0 / 20
  • DMARC 19 / 25
  • DNSSEC 0 / 10
  • Transport (MTA-STS/DANE) 0 / 15
  • TLS-RPT 0 / 5

Findings

  • !Subdomains unprotected (sp=none)

    The main domain is protected, but subdomains such as invoice.company.ch can still be forged.

  • !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.

  • iStrict DMARC alignment

    adkim=s or aspf=s requires exact domain matches. Secure, but demanding when sending from subdomains.

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider
Microsoft 365
Provider jurisdiction
USA · MX: US
Detection confidence
100 / 100
Microsoft tenant
Managed · Gemeinde Grindel
Tenant region
EU
Signals (6)
MXMicrosoft 365grindel-ch.mail.protection.outlook.com
SPFMicrosoft 365include:spf.protection.outlook.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
Domain verificationMicrosoft 365MS=ms77851394
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
0 grindel-ch.mail.protection.outlook.com 52.101.185.14 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US –
52.101.185.13 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US
52.101.185.12 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US

SPF

v=spf1 include:spf.protection.outlook.com include:_spf.i-web.ch -all
all
-all
DNS lookups
2 / 10
Includes
spf.protection.outlook.com_spf.i-web.ch
Detected sending services
Microsoft 365

DMARC

v=DMARC1; p=quarantine; pct=100; rua=mailto:ans@grindel.ch; ruf=mailto:ans@grindel.ch; sp=none; aspf=r; adkim=s
Policy
p=quarantine
Subdomains (sp)
none
Share (pct)
100 %
Alignment DKIM/SPF
strict / relaxed
Aggregate reports (rua)
ans@grindel.ch
Forensic reports (ruf)
ans@grindel.ch

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 365

History

  • Score 44 · DMARC quarantine

All changes of this organisation in the change log →

Raw data
grindel.ch. IN MX 0 grindel-ch.mail.protection.outlook.com.
grindel.ch. IN TXT "v=spf1 include:spf.protection.outlook.com include:_spf.i-web.ch -all"
_dmarc.grindel.ch. IN TXT "v=DMARC1; p=quarantine; pct=100; rua=mailto:ans@grindel.ch; ruf=mailto:ans@grindel.ch; sp=none; aspf=r; adkim=s"

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