Jumbo
jumbo.ch
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
- Industry avg.: 60.1 ▼ 9.1
- Canton avg.: 53 ▼ 2
- Overall avg.: 53.5 ▼ 2.5
- Rank 38 of 58 in the industry
Findings
-
✕DMARC in monitoring mode only (p=none)
p=none provides reports but does not reject a single forgery. The goal is p=reject.
-
!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
- 100 / 100
- Microsoft tenant
- Managed · Coop Genossenschaft
- Tenant region
- EU
Signals (8)
| MX | Microsoft 365 | jumbo-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-jumbo-ch._domainkey.coopgruppe.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover-s.outlook.com |
| Domain verification | Microsoft 365 | MS=ms40530798 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=yYMhIfvP5fRVw_3 |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | jumbo-ch.mail.protection.outlook.com | 52.101.68.10 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.68.21 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.68.25 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 a mx include:servers.mcsv.net include:_spf2.jumbo.ch include:spf.o365.coop.ch include:spf.protection.outlook.com -all- all
-all- DNS lookups
- 6 / 10
- Includes
servers.mcsv.net_spf2.jumbo.chspf.o365.coop.chspf.protection.outlook.com- Detected sending services
- Mailchimp/Mandrill, Microsoft 365
DMARC
v=DMARC1; p=none; sp=none; pct=100; fo=1; ri=86400; rua=mailto:927757b0@inbox.eu.redsift.cloud,mailto:support@jumbo.ch; ruf=mailto:927757b0@inbox.eu.redsift.cloud,mailto:support@jumbo.ch;- Policy
- p=none
- Subdomains (sp)
- none
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
927757b0@inbox.eu.redsift.cloudsupport@jumbo.ch- Forensic reports (ruf)
927757b0@inbox.eu.redsift.cloudsupport@jumbo.ch- Report services
- Red Sift OnDMARC
DKIM
| Selector | Key | delegated to |
|---|---|---|
k1 | RSA 1024 | dkim.mcsv.net |
k2 | RSA 2048 | dkim2.mcsv.net |
k3 | RSA 2048 | dkim3.mcsv.net |
mandrill | RSA 1024 | – |
mx | RSA 1024 | – |
selector1 | RSA 2048 | selector1-jumbo-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 365GoogleAppleMeta/FacebookDocuSignCisco Webex
History
- Score 51 · DMARC none
Raw data
jumbo.ch. IN MX 10 jumbo-ch.mail.protection.outlook.com.
jumbo.ch. IN TXT "v=spf1 a mx include:servers.mcsv.net include:_spf2.jumbo.ch include:spf.o365.coop.ch include:spf.protection.outlook.com -all"
_dmarc.jumbo.ch. IN TXT "v=DMARC1; p=none; sp=none; pct=100; fo=1; ri=86400; rua=mailto:927757b0@inbox.eu.redsift.cloud,mailto:support@jumbo.ch; ruf=mailto:927757b0@inbox.eu.redsift.cloud,mailto:support@jumbo.ch;"