Bank BSU
bsu.ch
62/100Grade C
Protection against forged senders: largely protected
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.: 54.8 ▲ 7.2
- Canton avg.: 53 ▲ 9
- Overall avg.: 53.5 ▲ 8.5
- Rank 38 of 98 in the industry
Findings
-
!External report receiver not authorised
The authorisation record for an external rua domain is missing (RFC 7489 §7.1); many receivers then send no reports.
-
!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 (7)
| MX | Microsoft 365 | bsu-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-bsu-ch._domainkey.rbsu.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms33089311 |
| 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 | bsu-ch.mail.protection.outlook.com | 52.101.187.1 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.185.13 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.185.14 | 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 include:_spf.rexx-systems.com include:cemsc.net ~all- all
~all- DNS lookups
- 5 / 10
- Includes
spf.protection.outlook.comspf.emailsignatures365.com_spf.rexx-systems.comcemsc.net- Detected sending services
- Microsoft 365
- 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 2048 | selector1-bsu-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 365
History
- Score 62 · DMARC quarantine
Raw data
bsu.ch. IN MX 10 bsu-ch.mail.protection.outlook.com.
bsu.ch. IN TXT "v=spf1 ip4:212.103.84.103 ip4:5.148.171.174 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:_spf.rexx-systems.com include:cemsc.net ~all"
_dmarc.bsu.ch. IN TXT "v=DMARC1; p=quarantine; rua=mailto:sicherheit.ict@rbs.ch"