Stadt Steckborn
steckborn.ch
- Industry
- Municipalities
- Headquarters
- Steckborn, Thurgau
- Type
- public
- Population
- 4,036
- FSO no.
- 4864
- Checked on
- 19 October 2026
Protection against forged senders: not protected
Points per criterion
- MX 10 / 10
- SPF 13 / 15
- DKIM 20 / 20
- DMARC 0 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 50.9 ▼ 7.9
- Canton avg.: 41.3 ▲ 1.7
- Overall avg.: 53.5 ▼ 10.5
- Rank 1397 of 2077 in the industry
Findings
-
✕No DMARC record
Without DMARC no receiver reliably rejects forged mail in the domain's name, and the organisation receives no abuse reports.
-
!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 · KND - AFI TG
- Tenant region
- EU
Signals (3)
| Domain verification | Microsoft 365 | MS=ms18209085 |
|---|---|---|
| Network | Swisscom | AS3303 SWISSCOM - Swisscom (Schweiz) AG |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | mta1.tg.ch | 161.78.3.99 | AS3303 SWISSCOM - Swisscom (Schweiz) AG | CH | – |
| 20 | mta2.tg.ch | 161.78.3.109 | AS3303 SWISSCOM - Swisscom (Schweiz) AG | CH | – |
SPF
v=spf1 ip4:193.33.128.155 +a +mx +ip4:193.33.128.141 +include:spf.mandrillapp.com +include:relay.mailchannels.net include:_spf.i-web.ch ~all- all
~all- DNS lookups
- 5 / 10
- Includes
spf.mandrillapp.comrelay.mailchannels.net_spf.i-web.ch- Detected sending services
- Mailchimp/Mandrill, Mailchimp Transactional
- IPv4
- 2 addresses authorised directly
DMARC
Without DMARC no receiver reliably rejects forged mail in the domain's name, and the organisation receives no abuse reports.
DKIM
| Selector | Key | delegated to |
|---|---|---|
default | RSA 2048 | – |
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 43 · DMARC -
Raw data
steckborn.ch. IN MX 10 mta1.tg.ch.
steckborn.ch. IN MX 20 mta2.tg.ch.
steckborn.ch. IN TXT "v=spf1 ip4:193.33.128.155 +a +mx +ip4:193.33.128.141 +include:spf.mandrillapp.com +include:relay.mailchannels.net include:_spf.i-web.ch ~all"