Stadt St. Gallen
stadt.sg.ch
- Industry
- Municipalities
- Headquarters
- St. Gallen, St. Gallen
- Type
- public
- Population
- 79,487
- FSO no.
- 3203
- Checked on
- 19 October 2026
98/100Grade A
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 13 / 15
- DKIM 20 / 20
- DMARC 25 / 25
- DNSSEC 10 / 10
- Transport (MTA-STS/DANE) 15 / 15
- TLS-RPT 5 / 5
- Industry avg.: 50.9 ▲ 47.1
- Canton avg.: 52.3 ▲ 45.7
- Overall avg.: 53.5 ▲ 44.5
- Rank 2 of 2077 in the industry
Findings
-
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
- 92 / 100
- Microsoft tenant
- Managed · Stadtverwaltung St.Gallen
- Tenant region
- EU
Signals (5)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms62364443 |
| Domain verification | Google Workspace | google-site-verification=ImhxTc_9bpqsHC8 |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 5 | stadt-sg-ch.gate.seppmail.cloud | 217.20.196.81 | AS24951 EVERYWARE-NET - EveryWare AG | CH | ✓ DNSSEC |
86.119.35.35 | AS559 Switch - SWITCH | CH |
SPF
v=spf1 include:spf.abxsec.com include:ict-sicherheit.stadt.sg.ch include:spf.protection.outlook.com include:_spf.ch.seppmail.cloud a:smtp.everyware.ch ~all- all
~all- DNS lookups
- 5 / 10
- Includes
spf.abxsec.comict-sicherheit.stadt.sg.chspf.protection.outlook.com_spf.ch.seppmail.cloud- Detected sending services
- Microsoft 365, SEPPmail
DMARC
v=DMARC1; p=reject; rua=mailto:b332ab15@in.mailhardener.com; ruf=mailto:b332ab15@in.mailhardener.com- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
b332ab15@in.mailhardener.com- Forensic reports (ruf)
b332ab15@in.mailhardener.com- Report services
- Mailhardener
DKIM
| Selector | Key | delegated to |
|---|---|---|
default | RSA 2048 | – |
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
stadt-sg-ch.gate.seppmail.cloud- DANE
- active
- DNSSEC
- active
- TLS-RPT
mailto:b332ab15@in.mailhardener.com- BIMI
- missing
Verified services
From verification records in the domain TXT: services where the domain is verified.
Microsoft 365GoogleMiroAirtable
History
- Score 98 · DMARC reject
Raw data
stadt.sg.ch. IN MX 5 stadt-sg-ch.gate.seppmail.cloud.
stadt.sg.ch. IN TXT "v=spf1 include:spf.abxsec.com include:ict-sicherheit.stadt.sg.ch include:spf.protection.outlook.com include:_spf.ch.seppmail.cloud a:smtp.everyware.ch ~all"
_dmarc.stadt.sg.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:b332ab15@in.mailhardener.com; ruf=mailto:b332ab15@in.mailhardener.com"
_mta-sts.stadt.sg.ch. IN TXT "v=STSv1; id=20190601000000Z"
_smtp._tls.stadt.sg.ch. IN TXT "v=TLSRPTv1; rua=mailto:b332ab15@in.mailhardener.com"