AET Azienda Elettrica Ticinese

aet.ch

Industry: Energy
Headquarters: Bellinzona, Ticino
Type: public
Employees (approx.): 250
Checked on: 19 October 2026

64/100Grade C

Protection against forged senders: largely protected

Points per criterion

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

Industry avg.: 60.5 ▲ 3.5
Canton avg.: 43.3 ▲ 20.7
Overall avg.: 53.5 ▲ 10.5
Rank 13 of 43 in the industry

Findings

!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.
iBIMI logo published

A brand logo for mail clients is published (without a certificate large providers do not show it).

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider: Microsoft 365
Upstream gateway: Cisco Secure Email
Provider jurisdiction: USA · MX: US
Detection confidence: 99 / 100
Microsoft tenant: Managed · AET
Tenant region: EU

Signals (4)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-aet-ch._domainkey.aetsvizzera.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`mx2.hc1526-89.eu.iphmx.com`	`23.90.118.40`	AS30238 AS-IRONP-VEGA - Cisco Systems Ironport Division	US	–
10	`mx2.hc1526-89.eu.iphmx.com`	`23.90.105.238`	AS30238 AS-IRONP-VEGA - Cisco Systems Ironport Division	US	–
10	`mx1.hc1526-89.eu.iphmx.com`	`23.90.105.238`	AS30238 AS-IRONP-VEGA - Cisco Systems Ironport Division	US	–
10	`mx1.hc1526-89.eu.iphmx.com`	`23.90.118.40`	AS30238 AS-IRONP-VEGA - Cisco Systems Ironport Division	US	–

SPF

v=spf1 mx ip4:185.79.204.0/24 a:smtp365.aet.ch include:spf.protection.outlook.com include:servers.mcsv.net include:spf-de.emailsignatures365.com exists:%{i}.spf.hc1526-89.eu.iphmx.com -all

all: -all
DNS lookups: 6 / 10
Includes: spf.protection.outlook.comservers.mcsv.netspf-de.emailsignatures365.com
Detected sending services: Microsoft 365, Mailchimp/Mandrill
IPv4: 256 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; pct=100; rua=mailto:wrrt39pj@ag.eu.dmarcian.com; ruf=mailto:wrrt39pj@fr.eu.dmarcian.com;

Policy: p=quarantine
Subdomains (sp): inherits p=quarantine
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): wrrt39pj@ag.eu.dmarcian.com
Forensic reports (ruf): wrrt39pj@fr.eu.dmarcian.com
Report services: dmarcian

DKIM

Selector	Key	delegated to
`k2`	RSA 2048	`dkim2.mcsv.net`
`k3`	RSA 2048	`dkim3.mcsv.net`
`selector1`	RSA 2048	`selector1-aet-ch._domainkey.aetsvizzera.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: without certificate · Logo

Verified services

From verification records in the domain TXT: services where the domain is verified.

AtlassianDocuSign

History

18 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

aet.ch. IN MX 10 mx2.hc1526-89.eu.iphmx.com.
aet.ch. IN MX 10 mx1.hc1526-89.eu.iphmx.com.
aet.ch. IN TXT "v=spf1 mx ip4:185.79.204.0/24 a:smtp365.aet.ch include:spf.protection.outlook.com include:servers.mcsv.net include:spf-de.emailsignatures365.com exists:%{i}.spf.hc1526-89.eu.iphmx.com -all"
_dmarc.aet.ch. IN TXT "v=DMARC1; p=quarantine; pct=100; rua=mailto:wrrt39pj@ag.eu.dmarcian.com; ruf=mailto:wrrt39pj@fr.eu.dmarcian.com;"
default._bimi.aet.ch. IN TXT "v=BIMI1; l=https://www.aet.ch/bimi.svg"

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