Cendres+Métaux
cmsa.ch
70/100Grade B
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 25 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 59.8 ▲ 10.2
- Canton avg.: 53.1 ▲ 16.9
- Overall avg.: 53.5 ▲ 16.5
- Rank 6 of 26 in the industry
Findings
-
!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
- Self-hosted / other
- Provider jurisdiction
- Switzerland · MX: CH
- Detection confidence
- 85 / 100
- Microsoft tenant
- Managed · CMSA
- Tenant region
- EU
Signals (4)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| Domain verification | Google Workspace | google-site-verification=50vxVZag8eRNjUa |
| SPF | Amazon | include:amazonses.com |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | mail.cmsa.ch | 83.137.26.121 | AS42346 AS-TINEO - NorthC Schweiz AG | CH | – |
| 20 | mail2.cmsa.ch | 212.120.49.121 | AS42346 AS-TINEO - NorthC Schweiz AG | CH | – |
SPF
v=spf1 mx a:mail.cmsa.ch a:mail2.cmsa.ch ip4:83.137.26.96/27 ip4:212.120.49.96/27 ip4:212.80.96.0/21 ip4:149.72.82.228 ip6:2a01:7480:1:100::/64 include:spf.umantis.com include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.brevo.com include:_spf.atlassian.net -all- all
-all- DNS lookups
- 9 / 10
- Includes
spf.umantis.com_spf.psm.knowbe4.comspf.protection.outlook.comspf.brevo.com_spf.atlassian.net- Detected sending services
- Microsoft 365, Brevo, Atlassian, Amazon SES
- IPv4
- 2,113 addresses authorised directly
DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@cmsa.ch; ruf=mailto:dmarcfo@cmsa.ch- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc@cmsa.ch- Forensic reports (ruf)
dmarcfo@cmsa.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
s1 | RSA 2048 | s1.domainkey.u18858631.wl132.sendgrid.net |
s2 | RSA 1024 | s2.domainkey.u18858631.wl132.sendgrid.net |
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.
GoogleAppleAtlassianBrevo
History
- Score 70 · DMARC reject
Raw data
cmsa.ch. IN MX 10 mail.cmsa.ch.
cmsa.ch. IN MX 20 mail2.cmsa.ch.
cmsa.ch. IN TXT "v=spf1 mx a:mail.cmsa.ch a:mail2.cmsa.ch ip4:83.137.26.96/27 ip4:212.120.49.96/27 ip4:212.80.96.0/21 ip4:149.72.82.228 ip6:2a01:7480:1:100::/64 include:spf.umantis.com include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.brevo.com include:_spf.atlassian.net -all"
_dmarc.cmsa.ch. IN TXT "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@cmsa.ch; ruf=mailto:dmarcfo@cmsa.ch"