MCH Group
mch-group.com
- Industry
- Tourism & hospitality
- Headquarters
- Basel, Basel-City
- Type
- listed
- Employees (approx.)
- 600
- Checked on
- 19 October 2026
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.: 57.3 ▼ 6.3
- Canton avg.: 57.4 ▼ 6.4
- Overall avg.: 53.5 ▼ 2.5
- Rank 25 of 38 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.
-
!SPF close to the 10-lookup limit (9)
One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
-
!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 · MCH Messe Schweiz (Basel) AG
- Tenant region
- EU
Signals (6)
| MX | Microsoft 365 | mchgroup.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-mchgroup-com0i._domainkey.mchgroup.onmicrosoft.com |
| Domain verification | Microsoft 365 | MS=ms45117108 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | mchgroup.mail.protection.outlook.com | 52.101.73.153 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.68.29 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.68.10 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 mx ip4:194.124.201.0/24 ip4:194.124.202.0/23 ip4:83.169.28.81 ip4:62.55.182.68 mx:mch-group.com a:mx01.rexx-systems.de a:mail.intevo.info a:vwp5104.webpack.hosteurope.de include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.mailjet.com -all- all
-all- DNS lookups
- 9 / 10
- Includes
spf.protection.outlook.com_spf.salesforce.comspf.mailjet.com- Detected sending services
- Microsoft 365, Salesforce, Mailjet
- IPv4
- 770 addresses authorised directly
DMARC
v=DMARC1; p=none; rua=mailto:dmarc-reports@mch-group.com- Policy
- p=none
- Subdomains (sp)
- inherits p=none
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc-reports@mch-group.com
DKIM
| Selector | Key | delegated to |
|---|---|---|
mailjet | RSA 1024 | – |
s1 | RSA 2048 | s1.domainkey.u30726707.wl208.sendgrid.net |
s2 | RSA 2048 | s2.domainkey.u30726707.wl208.sendgrid.net |
selector1 | RSA 1024 | selector1-mchgroup-com0i._domainkey.mchgroup.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 365AppleMeta/FacebookAtlassianDocuSignMiroTeamViewer
History
- Score 51 · DMARC none
Raw data
mch-group.com. IN MX 10 mchgroup.mail.protection.outlook.com.
mch-group.com. IN TXT "v=spf1 mx ip4:194.124.201.0/24 ip4:194.124.202.0/23 ip4:83.169.28.81 ip4:62.55.182.68 mx:mch-group.com a:mx01.rexx-systems.de a:mail.intevo.info a:vwp5104.webpack.hosteurope.de include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.mailjet.com -all"
_dmarc.mch-group.com. IN TXT "v=DMARC1; p=none; rua=mailto:dmarc-reports@mch-group.com"