Swissgrid

swissgrid.ch

Industry: Energy
Headquarters: Aarau, Aargau
Type: public
Employees (approx.): 900
Checked on: 19 October 2026

44/100Grade C

Protection against forged senders: largely protected

Points per criterion

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

Industry avg.: 60.5 ▼ 16.5
Canton avg.: 57.3 ▼ 13.3
Overall avg.: 53.5 ▼ 9.5
Rank 41 of 43 in the industry

Findings

!No DKIM key found

No key was found under more than 100 common selectors. A custom selector is possible, but without DKIM there is no cryptographic sender check.
!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.

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 · Swissgrid AG
Tenant region: EU

Signals (2)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`mx001.swissgrid.ch`	`83.137.77.80`	AS39132 Swissgrid - Swissgrid AG	CH	–
10	`mx002.swissgrid.ch`	`83.137.77.81`	AS39132 Swissgrid - Swissgrid AG	CH	–

SPF

v=spf1 mx a:smtp001.swissgrid.ch a:smtp002.swissgrid.ch include:spf.protection.outlook.com include:_spf.salesforce.com -all

all: -all
DNS lookups: 6 / 10
Includes: spf.protection.outlook.com_spf.salesforce.com
Detected sending services: Microsoft 365, Salesforce

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc@swissgridrua.uriports.com; ruf=mailto:dmarc@swissgridrua.uriports.com; fo=1;

Policy: p=quarantine
Subdomains (sp): inherits p=quarantine
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc@swissgridrua.uriports.com
Forensic reports (ruf): dmarc@swissgridrua.uriports.com
Report services: URIports

DKIM

No DKIM key found

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.

AppleAtlassianDocuSignMiroAutodesk

History

18 October 2026 Score 44 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

swissgrid.ch. IN MX 10 mx001.swissgrid.ch.
swissgrid.ch. IN MX 10 mx002.swissgrid.ch.
swissgrid.ch. IN TXT "v=spf1 mx a:smtp001.swissgrid.ch a:smtp002.swissgrid.ch include:spf.protection.outlook.com include:_spf.salesforce.com -all"
_dmarc.swissgrid.ch. IN TXT "v=DMARC1; p=quarantine; rua=mailto:dmarc@swissgridrua.uriports.com; ruf=mailto:dmarc@swissgridrua.uriports.com; fo=1;"

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