Previs Vorsorge
previs.ch
- Industry
- Pension funds
- Headquarters
- Bern, Bern
- Type
- foundation
- Checked on
- 19 October 2026
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.: 45.1 ▲ 16.9
- Canton avg.: 53.1 ▲ 8.9
- Overall avg.: 53.5 ▲ 8.5
- Rank 19 of 59 in the industry
Findings
-
!SPF close to the 10-lookup limit (10)
One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
-
!DMARC without reporting (no rua)
Without aggregate reports it stays invisible who sends in the domain's name.
-
!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 · Previs Vorsorge
- Tenant region
- EU
Signals (10)
| MX | Microsoft 365 | previs-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-previs-ch._domainkey.previsvorsorge.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms14717849 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=lJETliLITksEu2F |
| SPF | Amazon | include:amazonses.com |
| SPF | Swisscom | include:spf.appmail.swisscom.com |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 0 | previs-ch.mail.protection.outlook.com | 52.101.185.12 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.185.14 | 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 a mx a:securemail.previs.ch a:mx1.aspcloud.ch a:mx2.aspcloud.ch a:mail.ostendis.ch ip4:185.98.123.195 ip4:194.88.197.38 ip4:5.144.44.120 ip4:77.87.132.55 ip4:77.87.132.60 include:spf.crsend.com include:spf.appmail.swisscom.com include:spf.protection.outlook.com include:amazonses.com ~all- all
~all- DNS lookups
- 10 / 10
- Includes
spf.crsend.comspf.appmail.swisscom.comspf.protection.outlook.comamazonses.com- Detected sending services
- Swisscom, Microsoft 365, Amazon SES
- IPv4
- 5 addresses authorised directly
DMARC
v=DMARC1; p=quarantine;- Policy
- p=quarantine
- Subdomains (sp)
- inherits p=quarantine
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
- –
DKIM
| Selector | Key | delegated to |
|---|---|---|
newsletter | RSA 2048 | – |
nl | RSA 2048 | – |
s1 | RSA 2048 | s1.domainkey.u1316522.wl023.sendgrid.net |
s2 | RSA 1024 | s2.domainkey.u1316522.wl023.sendgrid.net |
selector1 | RSA 1024 | selector1-previs-ch._domainkey.previsvorsorge.onmicrosoft.com |
selector2 | RSA 2048 | selector2-previs-ch._domainkey.previsvorsorge.onmicrosoft.com |
seppmail | 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 365GoogleApple
History
- Score 62 · DMARC quarantine
Raw data
previs.ch. IN MX 0 previs-ch.mail.protection.outlook.com.
previs.ch. IN TXT "v=spf1 a mx a:securemail.previs.ch a:mx1.aspcloud.ch a:mx2.aspcloud.ch a:mail.ostendis.ch ip4:185.98.123.195 ip4:194.88.197.38 ip4:5.144.44.120 ip4:77.87.132.55 ip4:77.87.132.60 include:spf.crsend.com include:spf.appmail.swisscom.com include:spf.protection.outlook.com include:amazonses.com ~all"
_dmarc.previs.ch. IN TXT "v=DMARC1; p=quarantine;"