Gaznat

gaznat.ch

Industry
Energy
Headquarters
Vevey, Vaud
Type
public
Employees (approx.)
80
Checked on
19 October 2026
74/100Grade B

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) 0 / 15
  • TLS-RPT 0 / 5

Findings

  • !DKIM key below 2048 bits

    RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.

  • !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
Microsoft 365
Provider jurisdiction
USA · MX: US
Detection confidence
100 / 100
Microsoft tenant
Managed · gaznat.ch
Tenant region
EU
Signals (7)
MXMicrosoft 365gaznat-ch.mail.protection.outlook.com
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector1 → selector1-gaznat-ch._domainkey.gaznatch.onmicrosoft.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
Domain verificationMicrosoft 365MS=ms20492436
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
0 gaznat-ch.mail.protection.outlook.com 52.101.185.14 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US –
52.101.187.1 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US
52.101.185.13 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US

SPF

v=spf1 mx ip4:62.2.220.246 ip4:62.2.220.241 ip4:93.190.75.177 include:spf.mailjet.com include:spf.mailpro.com include:spf.protection.outlook.com -all
all
-all
DNS lookups
4 / 10
Includes
spf.mailjet.comspf.mailpro.comspf.protection.outlook.com
Detected sending services
Mailjet, Microsoft 365
IPv4
3 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:support@gaznat.ch; pct=100; ri=86400
Policy
p=quarantine
Subdomains (sp)
quarantine
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
support@gaznat.ch

DKIM

SelectorKeydelegated to
default RSA 2048 –
selector1 RSA 1024 selector1-gaznat-ch._domainkey.gaznatch.onmicrosoft.com

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

Transport encryption

MTA-STS
missing
DANE
missing
DNSSEC
active
TLS-RPT
missing
BIMI
missing

Verified services

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

Microsoft 365

History

  • Score 74 · DMARC quarantine

All changes of this organisation in the change log →

Raw data
gaznat.ch. IN MX 0 gaznat-ch.mail.protection.outlook.com.
gaznat.ch. IN TXT "v=spf1 mx ip4:62.2.220.246 ip4:62.2.220.241 ip4:93.190.75.177 include:spf.mailjet.com include:spf.mailpro.com include:spf.protection.outlook.com -all"
_dmarc.gaznat.ch. IN TXT "v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:support@gaznat.ch; pct=100; ri=86400"

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