Basler Verkehrs-Betriebe (BVB)
bvb.ch
- Industry
- Transport & logistics
- Headquarters
- Basel, Basel-City
- Type
- public
- Employees (approx.)
- 1,100
- Checked on
- 19 October 2026
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.: 59.9 ▲ 10.1
- Canton avg.: 57.4 ▲ 12.6
- Overall avg.: 53.5 ▲ 16.5
- Rank 16 of 67 in the industry
Findings
-
!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 · Basler Verkehrs-Betriebe
- Tenant region
- EU
Signals (8)
| MX | Microsoft 365 | bvb-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-bvb-ch._domainkey.baselerfahren.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms21647770 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=zqj0oRSv4UXJ37e |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | bvb-ch.mail.protection.outlook.com | 52.101.73.126 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.185.21 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.103.140 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 a:mail.bvb.ch a:smtp.bvb.ch ip4:194.56.208.107 ip4:194.56.210.72 ip4:88.99.35.117 include:postal.iot.bvb.ch include:spf.mandrillapp.com include:spf.protection.outlook.com -all- all
-all- DNS lookups
- 5 / 10
- Includes
postal.iot.bvb.chspf.mandrillapp.comspf.protection.outlook.com- Detected sending services
- Mailchimp/Mandrill, Mailchimp Transactional, Microsoft 365
- IPv4
- 3 addresses authorised directly
DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@bvb.ch;- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc@bvb.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
k2 | RSA 2048 | dkim2.mcsv.net |
k3 | RSA 2048 | dkim3.mcsv.net |
mandrill | RSA 1024 | – |
s1 | RSA 2048 | s1.domainkey.u23899045.wl046.sendgrid.net |
s2 | RSA 2048 | s2.domainkey.u23899045.wl046.sendgrid.net |
selector1 | RSA 1024 | selector1-bvb-ch._domainkey.baselerfahren.onmicrosoft.com |
selector2 | RSA 1024 | selector2-bvb-ch._domainkey.baselerfahren.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 365GoogleAppleAdobeCisco Webex
History
- Score 70 · DMARC reject
Raw data
bvb.ch. IN MX 10 bvb-ch.mail.protection.outlook.com.
bvb.ch. IN TXT "v=spf1 a:mail.bvb.ch a:smtp.bvb.ch ip4:194.56.208.107 ip4:194.56.210.72 ip4:88.99.35.117 include:postal.iot.bvb.ch include:spf.mandrillapp.com include:spf.protection.outlook.com -all"
_dmarc.bvb.ch. IN TXT "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@bvb.ch;"