Gemeinde Regensdorf
regensdorf.ch
- Industry
- Municipalities
- Headquarters
- Regensdorf, Zurich
- Type
- public
- Population
- 20,701
- FSO no.
- 96
- Checked on
- 19 October 2026
Protection against forged senders: not protected (monitoring only)
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 6 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 50.9 ▲ 0.1
- Canton avg.: 53 ▼ 2
- Overall avg.: 53.5 ▼ 2.5
- Rank 1045 of 2077 in the industry
Findings
-
✕DMARC in monitoring mode only (p=none)
p=none provides reports but does not reject a single forgery. The goal is p=reject.
-
!SPF close to the 10-lookup limit (8)
One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
-
!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 · Gemeinde Regensdorf
- Tenant region
- EU
Signals (8)
| MX | Microsoft 365 | regensdorf-ch.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-regensdorf-ch._domainkey.regensdorfch.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms48497296 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=zWjLPHZ2paVbGv9 |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | regensdorf-ch.mail.protection.outlook.com | 52.101.185.14 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
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 |
SPF
v=spf1 ip4:81.62.149.138/30 ip4:62.2.156.178/29 ip4:91.233.182.0/25 include:spf.protection.outlook.com include:_partner.regensdorf.ch include:spf.fairgate.ch -all- all
-all- DNS lookups
- 8 / 10
- Includes
spf.protection.outlook.com_partner.regensdorf.chspf.fairgate.ch- Detected sending services
- Microsoft 365, Zendesk, Mailgun
- IPv4
- 140 addresses authorised directly
DMARC
v=DMARC1; p=none; sp=none; rua=mailto:dmarc_obtcloud@obt.ch; ruf=mailto:dmarc_obtcloud@obt.ch; fo=1; pct=100- Policy
- p=none
- Subdomains (sp)
- none
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarc_obtcloud@obt.ch- Forensic reports (ruf)
dmarc_obtcloud@obt.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
fm1 | RSA 2048 | fm1-7663-regensdorf-ch.fmdkim.net |
fm2 | RSA 2048 | fm2-7663-regensdorf-ch.fmdkim.net |
mail | RSA 1024 | – |
selector1 | RSA 2048 | selector1-regensdorf-ch._domainkey.regensdorfch.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 365GoogleBrevo
History
- Score 51 · DMARC none
Raw data
regensdorf.ch. IN MX 10 regensdorf-ch.mail.protection.outlook.com.
regensdorf.ch. IN TXT "v=spf1 ip4:81.62.149.138/30 ip4:62.2.156.178/29 ip4:91.233.182.0/25 include:spf.protection.outlook.com include:_partner.regensdorf.ch include:spf.fairgate.ch -all"
_dmarc.regensdorf.ch. IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:dmarc_obtcloud@obt.ch; ruf=mailto:dmarc_obtcloud@obt.ch; fo=1; pct=100"