Rafael Pfister
+41 58 510 22 08 Consulting

Franke

franke.com

Industry
Machinery & electrical
Headquarters
Aarburg, Aargau
Type
private
Employees (approx.)
8,000
Checked on
19 October 2026
90/100Grade 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) 12 / 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.

  • 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
Microsoft 365
Provider jurisdiction
USA · MX: US
Detection confidence
100 / 100
Microsoft tenant
Managed · Franke Group
Tenant region
EU
Signals (10)
MXMicrosoft 365franke-com.t-v1.mx.microsoft
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector1 → selector1-franke-com._domainkey.frankegroup.onmicrosoft.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
Domain verificationMicrosoft 365MS=ms25626623
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
SPFGoogle Workspaceinclude:_spf.google.com
DKIMGoogle Workspacegoogle
Domain verificationGoogle Workspacegoogle-site-verification=4486bYXAL2mbULC
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
0 franke-com.t-v1.mx.microsoft 52.101.68.27 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US ✓ DNSSEC
52.101.91.153 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US
52.101.73.153 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US

SPF

v=spf1 ip4:149.72.160.224 include:_spf-dc12.successfactors.com include:_spf.google.com include:spf.protection.outlook.com include:_spf1.franke.com include:_spf2.franke.com include:mktomail.com ~all
all
~all
DNS lookups
6 / 10
Includes
_spf-dc12.successfactors.com_spf.google.comspf.protection.outlook.com_spf1.franke.com_spf2.franke.commktomail.com
Detected sending services
SAP, Google, Microsoft 365, Adobe Campaign/Marketo
IPv4
1 addresses authorised directly

DMARC

v=DMARC1; p=reject; rua=mailto:sys-dmarc.int@franke.com,mailto:org_888d65270861ee@reports.verifydmarc.com;
Policy
p=reject
Subdomains (sp)
inherits p=reject
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
sys-dmarc.int@franke.comorg_888d65270861ee@reports.verifydmarc.com

DKIM

SelectorKeydelegated to
cm RSA 1024 –
google RSA 2048 –
m1 RSA 1024 –
mailjet RSA 1024 –
s1 RSA 2048 s1.domainkey.u11046348.wl099.sendgrid.net
s1024 RSA 2048 –
s2 RSA 1024 s2.domainkey.u11046348.wl099.sendgrid.net
selector1 RSA 2048 selector1-franke-com._domainkey.frankegroup.onmicrosoft.com

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

Transport encryption

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

Verified services

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

Microsoft 365GoogleAppleMeta/FacebookAtlassianDocuSignOneTrustFigmaZapierPinterestTeamViewerSmartsheet

History

  • Score 90 · DMARC reject

All changes of this organisation in the change log →

Raw data 
franke.com. IN MX 0 franke-com.t-v1.mx.microsoft.
franke.com. IN TXT "v=spf1 ip4:149.72.160.224 include:_spf-dc12.successfactors.com include:_spf.google.com include:spf.protection.outlook.com include:_spf1.franke.com include:_spf2.franke.com include:mktomail.com ~all"
_dmarc.franke.com. IN TXT "v=DMARC1; p=reject; rua=mailto:sys-dmarc.int@franke.com,mailto:org_888d65270861ee@reports.verifydmarc.com;"

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