Coop
coop.ch
- Industry
- Retail
- Headquarters
- Basel, Basel-City
- Type
- cooperative
- Employees (approx.)
- 95,000
- Checked on
- 19 October 2026
Protection against forged senders: largely protected, with a gap: subdomains not protected (sp=none)
Points per criterion
- MX 10 / 10
- SPF 13 / 15
- DKIM 20 / 20
- DMARC 19 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 60.1 ▲ 1.9
- Canton avg.: 57.4 ▲ 4.6
- Overall avg.: 53.5 ▲ 8.5
- Rank 30 of 58 in the industry
Findings
-
!Subdomains unprotected (sp=none)
The main domain is protected, but subdomains such as invoice.company.ch can still be forged.
-
!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.
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Provider jurisdiction
- USA · MX: US
- Detection confidence
- 86 / 100
- Microsoft tenant
- Managed · Coop Genossenschaft
- Tenant region
- EU
Signals (6)
| MX | Microsoft 365 | coop-ch.mail.protection.outlook.com |
|---|---|---|
| DKIM | Microsoft 365 | selector1 → selector1-coop-ch._domainkey.coopgruppe.onmicrosoft.com |
| Domain verification | Microsoft 365 | MS=ms19981488 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=vGP6gNte12b2vab |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | coop-ch.mail.protection.outlook.com | 52.101.91.156 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.209.31 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.91.21 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 include:_u.coop.ch._spf.smart.ondmarc.com ~all- all
~all- DNS lookups
- 5 / 10
- Includes
_u.coop.ch._spf.smart.ondmarc.com
DMARC
v=DMARC1; p=quarantine; pct=100; sp=none; rua=mailto:927757b0@inbox.eu.redsift.cloud; ruf=mailto:927757b0@inbox.eu.redsift.cloud; adkim=r; aspf=r; fo=1; rf=afrf; ri=86400- Policy
- p=quarantine
- Subdomains (sp)
- none
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
927757b0@inbox.eu.redsift.cloud- Forensic reports (ruf)
927757b0@inbox.eu.redsift.cloud- Report services
- Red Sift OnDMARC
DKIM
| Selector | Key | delegated to |
|---|---|---|
mail | RSA 1024 | – |
mandrill | RSA 1024 | – |
s1 | RSA 2048 | s1.domainkey.u2807291.wl042.sendgrid.net |
s2 | RSA 1024 | s2.domainkey.u2807291.wl042.sendgrid.net |
selector1 | RSA 1024 | selector1-coop-ch._domainkey.coopgruppe.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 365GoogleAppleAtlassianDocuSignAdobeOneTrustDropboxMiroBrevoTeamViewer
History
- Score 62 · DMARC quarantine
Raw data
coop.ch. IN MX 10 coop-ch.mail.protection.outlook.com.
coop.ch. IN TXT "v=spf1 include:_u.coop.ch._spf.smart.ondmarc.com ~all"
_dmarc.coop.ch. IN TXT "v=DMARC1; p=quarantine; pct=100; sp=none; rua=mailto:927757b0@inbox.eu.redsift.cloud; ruf=mailto:927757b0@inbox.eu.redsift.cloud; adkim=r; aspf=r; fo=1; rf=afrf; ri=86400"