Gemeinde Oberuzwil
oberuzwil.ch
- Industry
- Municipalities
- Headquarters
- Oberuzwil, St. Gallen
- Type
- public
- Population
- 6,864
- FSO no.
- 3407
- Checked on
- 19 October 2026
82/100Grade B
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) 15 / 15
- TLS-RPT 5 / 5
- Industry avg.: 50.9 ▲ 31.1
- Canton avg.: 52.3 ▲ 29.7
- Overall avg.: 53.5 ▲ 28.5
- Rank 36 of 2077 in the industry
Findings
-
!SPF close to the 10-lookup limit (9)
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.
-
iStrict DMARC alignment
adkim=s or aspf=s requires exact domain matches. Secure, but demanding when sending from subdomains.
-
iDANE active (TLSA with DNSSEC)
All MX hosts publish TLSA records secured by DNSSEC.
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Upstream gateway
- SEPPmail
- Provider jurisdiction
- USA · MX: CH
- Detection confidence
- 100 / 100
- Microsoft tenant
- Managed · Oberuzwil
- Tenant region
- EU
Signals (5)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| DKIM | Microsoft 365 | selector1 → selector1-oberuzwil-ch._domainkey.gou9242.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms10535781 |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | oberuzwil-ch.gate.seppmail.cloud | 86.119.35.35 | AS559 Switch - SWITCH | CH | ✓ DNSSEC |
217.20.196.81 | AS24951 EVERYWARE-NET - EveryWare AG | CH |
SPF
v=spf1 a mx a:spam.geoinfo.ch a:mail.koelliker.ch a:mail.oberuzwil.ch ip4:62.12.163.0/27 ip4:146.185.79.235 include:spf.abxsec.com include:spf.protection.outlook.com include:_spf.i-web.ch include:_spf.ch.seppmail.cloud ~all- all
~all- DNS lookups
- 9 / 10
- Includes
spf.abxsec.comspf.protection.outlook.com_spf.i-web.ch_spf.ch.seppmail.cloud- Detected sending services
- Microsoft 365, SEPPmail
- IPv4
- 33 addresses authorised directly
DMARC
v=DMARC1; p=quarantine; rua=mailto:8b073e41@in.mailhardener.com; aspf=s; adkim=s; sp=reject; np=reject;- Policy
- p=quarantine
- Subdomains (sp)
- reject
- np
- reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- strict / strict
- Aggregate reports (rua)
8b073e41@in.mailhardener.com- Report services
- Mailhardener
DKIM
| Selector | Key | delegated to |
|---|---|---|
default | RSA 2048 | – |
dkim | RSA 1024 | – |
selector1 | RSA 2048 | selector1-oberuzwil-ch._domainkey.gou9242.onmicrosoft.com |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- Mode: enforce · max_age: 1,209,600 s · covers all MX: yes
- mx
oberuzwil-ch.gate.seppmail.cloud- DANE
- active
- DNSSEC
- missing
- TLS-RPT
mailto:8b073e41@in.mailhardener.com- BIMI
- missing
Verified services
From verification records in the domain TXT: services where the domain is verified.
Microsoft 365Apple
History
- Score 82 · DMARC quarantine
Raw data
oberuzwil.ch. IN MX 10 oberuzwil-ch.gate.seppmail.cloud.
oberuzwil.ch. IN TXT "v=spf1 a mx a:spam.geoinfo.ch a:mail.koelliker.ch a:mail.oberuzwil.ch ip4:62.12.163.0/27 ip4:146.185.79.235 include:spf.abxsec.com include:spf.protection.outlook.com include:_spf.i-web.ch include:_spf.ch.seppmail.cloud ~all"
_dmarc.oberuzwil.ch. IN TXT "v=DMARC1; p=quarantine; rua=mailto:8b073e41@in.mailhardener.com; aspf=s; adkim=s; sp=reject; np=reject;"
_mta-sts.oberuzwil.ch. IN TXT "v=STSv1; id=20190601000000Z"
_smtp._tls.oberuzwil.ch. IN TXT "v=TLSRPTv1; rua=mailto:8b073e41@in.mailhardener.com"