Gebäudeversicherung Basel-Stadt
gvbs.ch
- Industry
- Insurance
- Headquarters
- Basel, Basel-City
- Type
- public
- Employees (approx.)
- 50
- 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.: 58.6 ▲ 5.4
- Canton avg.: 57.4 ▲ 6.6
- Overall avg.: 53.5 ▲ 10.5
- Rank 15 of 35 in the industry
Findings
-
!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 · Gebäudeversicherung Basel Stadt
- Tenant region
- EU
Signals (3)
| Domain verification | Microsoft 365 | MS=ms48848747 |
|---|---|---|
| Network | Swiss hoster | AS6730 SUNRISE - Sunrise GmbH |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | mail.gvbs.ch | 46.140.113.27 | AS6730 SUNRISE - Sunrise GmbH | CH | – |
SPF
v=spf1 a mx ip4:46.140.113.26 ip4:46.140.113.27 include:_spf.web-solutions.io -all- all
-all- DNS lookups
- 3 / 10
- Includes
_spf.web-solutions.io- IPv4
- 2 addresses authorised directly
DMARC
v=DMARC1;p=quarantine;rua=mailto:dmarc@gvbs.ch;- Policy
- p=quarantine
- Subdomains (sp)
- inherits p=quarantine
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc@gvbs.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
default | RSA 2048 | – |
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 64 · DMARC quarantine
Raw data
gvbs.ch. IN MX 10 mail.gvbs.ch.
gvbs.ch. IN TXT "v=spf1 a mx ip4:46.140.113.26 ip4:46.140.113.27 include:_spf.web-solutions.io -all"
_dmarc.gvbs.ch. IN TXT "v=DMARC1;p=quarantine;rua=mailto:dmarc@gvbs.ch;"