Kanton Appenzell Ausserrhoden

ar.ch

Industry
Cantonal administrations
Headquarters
Herisau, Appenzell Outer Rhodes
Type
public
Checked on
19 October 2026
89/100Grade A

Protection against forged senders: largely protected

Points per criterion

  • MX 10 / 10
  • SPF 15 / 15
  • DKIM 20 / 20
  • DMARC 19 / 25
  • DNSSEC 10 / 10
  • Transport (MTA-STS/DANE) 15 / 15
  • TLS-RPT 0 / 5

Findings

  • !No TLS reporting (TLS-RPT)

    Without TLS-RPT the organisation does not learn when senders fail to deliver encrypted.

  • iDANE active (TLSA with DNSSEC)

    All MX hosts publish TLSA records secured by DNSSEC.

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider
Self-hosted / other
Provider jurisdiction
Switzerland · MX: CH
Detection confidence
85 / 100
Microsoft tenant
Managed · Kanton AR
Tenant region
EU
Signals (2)
SPFMicrosoft 365include:spf.protection.outlook.com
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
10 dmzfml0001.ari-ag.ch 193.5.177.17 AS211452 KANTONAR - Kanton Appenzell Ausserrhoden CH ✓ DNSSEC
11 dmzfml0002.ari-ag.ch 193.5.177.18 AS211452 KANTONAR - Kanton Appenzell Ausserrhoden CH ✓ DNSSEC

SPF

v=spf1 include:_spf.ari-ag.ch a:ar03.snowflakehosting.ch -all
all
-all
DNS lookups
6 / 10
Includes
_spf.ari-ag.ch
Detected sending services
Microsoft 365

DMARC

v=DMARC1;p=quarantine;rua=mailto:dmarc@ari-ag.ch;ruf=mailto:dmarc@ari-ag.ch
Policy
p=quarantine
Subdomains (sp)
inherits p=quarantine
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
dmarc@ari-ag.ch
Forensic reports (ruf)
dmarc@ari-ag.ch

DKIM

SelectorKeydelegated to
selector1 RSA 2048 –

Checked: 100 common selectors. Keys under custom selectors remain invisible.

Transport encryption

MTA-STS
Mode: enforce · max_age: 86,400 s · covers all MX: yes
mx
dmzfml0001.ari-ag.chdmzfml0002.ari-ag.ch*.mail.ari-ag.ch
DANE
active
DNSSEC
active
TLS-RPT
missing
BIMI
missing

History

  • Score 89 · DMARC quarantine

All changes of this organisation in the change log →

Raw data
ar.ch. IN MX 10 dmzfml0001.ari-ag.ch.
ar.ch. IN MX 11 dmzfml0002.ari-ag.ch.
ar.ch. IN TXT "v=spf1 include:_spf.ari-ag.ch a:ar03.snowflakehosting.ch -all"
_dmarc.ar.ch. IN TXT "v=DMARC1;p=quarantine;rua=mailto:dmarc@ari-ag.ch;ruf=mailto:dmarc@ari-ag.ch"
_mta-sts.ar.ch. IN TXT "v=STSv1; id=20250513T010101"

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