Regionalverkehr Bern-Solothurn (RBS)
rbs.ch
- Industry
- Transport & logistics
- Headquarters
- Ittigen, Bern
- Type
- public
- Employees (approx.)
- 600
- Checked on
- 19 October 2026
64/100Grade C
Protection against forged senders: largely protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 19 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 59.9 ▲ 4.1
- Canton avg.: 53.1 ▲ 10.9
- Overall avg.: 53.5 ▲ 10.5
- Rank 29 of 67 in the industry
Findings
-
!SPF close to the 10-lookup limit (8)
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 · RBSU
- Tenant region
- EU
Signals (8)
| MX | Microsoft 365 | rbs-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-rbs-ch._domainkey.rbsu.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms42504428 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=vu-EtAHlwx9BSiq |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | rbs-ch.mail.protection.outlook.com | 52.101.187.1 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.185.12 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.185.13 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 ip4:212.103.84.103 ip4:5.148.171.174 include:spf.protection.outlook.com include:spf.emailsignatures365.com a:c.spf.service-now.com include:_spf.rexx-systems.com include:fdspfeuc.freshemail.io include:cemsc.net include:spf.protection.cyon.net -all- all
-all- DNS lookups
- 8 / 10
- Includes
spf.protection.outlook.comspf.emailsignatures365.com_spf.rexx-systems.comfdspfeuc.freshemail.iocemsc.netspf.protection.cyon.net- Detected sending services
- Microsoft 365, Freshworks
- IPv4
- 2 addresses authorised directly
DMARC
v=DMARC1; p=quarantine; rua=mailto:sicherheit.ict@rbs.ch- Policy
- p=quarantine
- Subdomains (sp)
- inherits p=quarantine
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
sicherheit.ict@rbs.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
selector1 | RSA 1024 | selector1-rbs-ch._domainkey.rbsu.onmicrosoft.com |
selector2 | RSA 1024 | selector2-rbs-ch._domainkey.rbsu.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 365Google
History
- Score 64 · DMARC quarantine
Raw data
rbs.ch. IN MX 10 rbs-ch.mail.protection.outlook.com.
rbs.ch. IN TXT "v=spf1 ip4:212.103.84.103 ip4:5.148.171.174 include:spf.protection.outlook.com include:spf.emailsignatures365.com a:c.spf.service-now.com include:_spf.rexx-systems.com include:fdspfeuc.freshemail.io include:cemsc.net include:spf.protection.cyon.net -all"
_dmarc.rbs.ch. IN TXT "v=DMARC1; p=quarantine; rua=mailto:sicherheit.ict@rbs.ch"