Debrunner Acifer
d-a.ch
- Industry
- Retail
- Headquarters
- St. Gallen, St. Gallen
- Type
- private
- Employees (approx.)
- 1,000
- Checked on
- 19 October 2026
80/100Grade B
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 13 / 15
- DKIM 20 / 20
- DMARC 25 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 12 / 15
- TLS-RPT 0 / 5
- Industry avg.: 60.1 ▲ 19.9
- Canton avg.: 52.3 ▲ 27.7
- Overall avg.: 53.5 ▲ 26.5
- Rank 4 of 58 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
- NoSpamProxy
- Provider jurisdiction
- USA · MX: DE
- Detection confidence
- 100 / 100
- Microsoft tenant
- Managed · Klöckner Shared Services GmbH
- Tenant region
- EU
Signals (7)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| DKIM | Microsoft 365 | selector1 → selector1-da-ch0c._domainkey.kloeco.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms13242598 |
| Domain verification | Google Workspace | google-site-verification=eVJd3RtLEWflRyH |
| Network | Amazon | AS16509 AMAZON-02 - Amazon.com, Inc. |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 0 | kloeckner-com.mail.cloud.nospamproxy.com | 178.212.92.217 | AS16509 AMAZON-02 - Amazon.com, Inc. | DE | ✓ DNSSEC |
193.37.132.124 | AS16509 AMAZON-02 - Amazon.com, Inc. | DE |
SPF
v=spf1 include:spf.protection.outlook.com include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all- all
~all- DNS lookups
- 2 / 10
- Includes
spf.protection.outlook.com- Detected sending services
- Microsoft 365
DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; fo=s- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc_agg@vali.email
DKIM
| Selector | Key | delegated to |
|---|---|---|
s1 | RSA 2048 | s1.domainkey.u18329573.wl074.sendgrid.net |
s2 | RSA 1024 | s2.domainkey.u18329573.wl074.sendgrid.net |
selector1 | RSA 2048 | selector1-da-ch0c._domainkey.kloeco.onmicrosoft.com |
selector2 | RSA 2048 | selector2-da-ch0c._domainkey.kloeco.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.
Microsoft 365GoogleAdobe
History
- Score 80 · DMARC reject
Raw data
d-a.ch. IN MX 0 kloeckner-com.mail.cloud.nospamproxy.com.
d-a.ch. IN TXT "v=spf1 include:spf.protection.outlook.com include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
_dmarc.d-a.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; fo=s"