Baselland Transport (BLT)
blt.ch
- Industry
- Transport & logistics
- Headquarters
- Oberwil, Basel-Country
- Type
- public
- Employees (approx.)
- 600
- Checked on
- 19 October 2026
80/100Grade B
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 25 / 25
- DNSSEC 10 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 59.9 ▲ 20.1
- Canton avg.: 56.1 ▲ 23.9
- Overall avg.: 53.5 ▲ 26.5
- Rank 6 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.
-
!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 · BLT Baselland Transport AG
- Tenant region
- EU
Signals (6)
| MX | Microsoft 365 | blt-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-blt-ch._domainkey.bltag.onmicrosoft.com |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=VW0HRssLwHaAzAZ |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 0 | blt-ch.mail.protection.outlook.com | 52.101.185.13 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.185.12 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.187.1 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 mx ip4:194.126.144.0/23 include:spf.protection.outlook.com include:spf.cloud.ci-solution.com ip4:54.229.2.165 ip4:52.30.130.201 ip4:212.120.57.40 ip4:212.120.57.34 include:146077044.spf07.hubspotemail.net -all- all
-all- DNS lookups
- 4 / 10
- Includes
spf.protection.outlook.comspf.cloud.ci-solution.com146077044.spf07.hubspotemail.net- Detected sending services
- Microsoft 365, HubSpot
- IPv4
- 516 addresses authorised directly
DMARC
v=DMARC1; p=reject; sp=reject; rua=mailto:admin@blt.ch; rf=afrf; pct=100; ri=86400- Policy
- p=reject
- Subdomains (sp)
- reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
admin@blt.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
selector1 | RSA 1024 | selector1-blt-ch._domainkey.bltag.onmicrosoft.com |
selector2 | RSA 1024 | selector2-blt-ch._domainkey.bltag.onmicrosoft.com |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- missing
- DANE
- missing
- DNSSEC
- active
- TLS-RPT
- missing
- BIMI
- missing
Verified services
From verification records in the domain TXT: services where the domain is verified.
GoogleAppleMeta/FacebookDocuSign
History
- Score 80 · DMARC reject
Raw data
blt.ch. IN MX 0 blt-ch.mail.protection.outlook.com.
blt.ch. IN TXT "v=spf1 mx ip4:194.126.144.0/23 include:spf.protection.outlook.com include:spf.cloud.ci-solution.com ip4:54.229.2.165 ip4:52.30.130.201 ip4:212.120.57.40 ip4:212.120.57.34 include:146077044.spf07.hubspotemail.net -all"
_dmarc.blt.ch. IN TXT "v=DMARC1; p=reject; sp=reject; rua=mailto:admin@blt.ch; rf=afrf; pct=100; ri=86400"