Assura
assura.ch
- Industry
- Health insurers
- Headquarters
- Pully, Vaud
- Type
- private
- Employees (approx.)
- 1,300
- Checked on
- 19 October 2026
74/100Grade B
Protection against forged senders: largely protected, with a gap: pct=75
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 19 / 25
- DNSSEC 10 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 60.5 ▲ 13.5
- Canton avg.: 58.5 ▲ 15.5
- Overall avg.: 53.5 ▲ 20.5
- Rank 2 of 16 in the industry
Findings
-
!SPF authorises very large IP ranges (92,163)
The SPF record itself lists IPv4 ranges with more than 65,000 addresses. The wider the range, the easier it is for third parties to send from an authorised network.
-
!DMARC applies to part of the mail only (pct<100) (75)
With pct below 100 the policy is applied to only part of the failing mail.
-
!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 · Groupe Assura
- Tenant region
- EU
Signals (7)
| MX | Microsoft 365 | assura-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-assura-ch._domainkey.figeas.onmicrosoft.com |
| Domain verification | Microsoft 365 | MS=ms31555575 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=0KNDc-5xGyprcsl |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 0 | assura-ch.mail.protection.outlook.com | 52.101.73.123 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.68.15 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.73.145 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 mx:mail.assura.ch ip4:62.2.245.115 ip4:62.2.245.123 ip4:62.2.245.71 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/18 ip4:76.223.128.0/19 ip4:216.221.160.0/19 ip4:206.55.144.0/20 ip4:24.110.64.0/18 a:spm.figeas.ch include:spf.protection.outlook.com include:_spf.general.transactional-mail-a.com include:spf.terranovasite.com -all- all
-all- DNS lookups
- 5 / 10
- Includes
spf.protection.outlook.com_spf.general.transactional-mail-a.comspf.terranovasite.com- Detected sending services
- Microsoft 365
- IPv4
- 92,163 addresses authorised directly
DMARC
v=DMARC1; p=quarantine; pct=75; fo=1; rua=mailto:rua+assura.ch@dmarc.barracudanetworks.com; ruf=mailto:ruf+assura.ch@dmarc.barracudanetworks.com- Policy
- p=quarantine
- Subdomains (sp)
- inherits p=quarantine
- Share (pct)
- 75 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
rua+assura.ch@dmarc.barracudanetworks.com- Forensic reports (ruf)
ruf+assura.ch@dmarc.barracudanetworks.com- Report services
- Barracuda
DKIM
| Selector | Key | delegated to |
|---|---|---|
default | RSA 2048 | – |
selector1 | RSA 1024 | selector1-assura-ch._domainkey.figeas.onmicrosoft.com |
selector2 | RSA 1024 | selector2-assura-ch._domainkey.figeas.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.
Microsoft 365GoogleAppleMeta/Facebook
History
- Score 74 · DMARC quarantine
Raw data
assura.ch. IN MX 0 assura-ch.mail.protection.outlook.com.
assura.ch. IN TXT "v=spf1 mx:mail.assura.ch ip4:62.2.245.115 ip4:62.2.245.123 ip4:62.2.245.71 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/18 ip4:76.223.128.0/19 ip4:216.221.160.0/19 ip4:206.55.144.0/20 ip4:24.110.64.0/18 a:spm.figeas.ch include:spf.protection.outlook.com include:_spf.general.transactional-mail-a.com include:spf.terranovasite.com -all"
_dmarc.assura.ch. IN TXT "v=DMARC1; p=quarantine; pct=75; fo=1; rua=mailto:rua+assura.ch@dmarc.barracudanetworks.com; ruf=mailto:ruf+assura.ch@dmarc.barracudanetworks.com"