Gemeinde Therwil

therwil.ch

Industry
Municipalities
Headquarters
Therwil, Basel-Country
Type
public
Population
10,141
FSO no.
2775
Checked on
19 October 2026
51/100Grade C

Protection against forged senders: not protected (monitoring only)

Points per criterion

  • MX 10 / 10
  • SPF 15 / 15
  • DKIM 20 / 20
  • DMARC 6 / 25
  • DNSSEC 0 / 10
  • Transport (MTA-STS/DANE) 0 / 15
  • TLS-RPT 0 / 5

Findings

  • ✕DMARC in monitoring mode only (p=none)

    p=none provides reports but does not reject a single forgery. The goal is p=reject.

  • !DMARC without reporting (no rua)

    Without aggregate reports it stays invisible who sends in the domain's name.

  • !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.

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 Therwil
Tenant region
EU
Signals (7)
MXMicrosoft 365therwil-ch.mail.protection.outlook.com
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector1 → selector1-therwil-ch._domainkey.therwil.onmicrosoft.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
Domain verificationMicrosoft 365MS=ms97342068
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
10 therwil-ch.mail.protection.outlook.com 52.101.187.1 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US –
52.101.185.14 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 mx ip4:146.4.42.27 ip4:212.120.37.100 a:mail.ostendis.ch include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.talus.ch -all
all
-all
DNS lookups
5 / 10
Includes
spf.protection.outlook.comspf-de.emailsignatures365.com_spf.talus.ch
Detected sending services
Microsoft 365
IPv4
2 addresses authorised directly

DMARC

v=DMARC1; p=none; adkim=r; aspf=r;
Policy
p=none
Subdomains (sp)
inherits p=none
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
–

DKIM

SelectorKeydelegated to
selector1 RSA 2048 selector1-therwil-ch._domainkey.therwil.onmicrosoft.com

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 51 · DMARC none

All changes of this organisation in the change log →

Raw data
therwil.ch. IN MX 10 therwil-ch.mail.protection.outlook.com.
therwil.ch. IN TXT "v=spf1 mx ip4:146.4.42.27 ip4:212.120.37.100 a:mail.ostendis.ch include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.talus.ch -all"
_dmarc.therwil.ch. IN TXT "v=DMARC1; p=none; adkim=r; aspf=r;"

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