Dukascopy Bank

dukascopy.com

Industry
Banking
Headquarters
Genève, Geneva
Type
private
Employees (approx.)
300
Checked on
19 October 2026
80/100Grade B

Protection against forged senders: protected

Points per criterion

  • MX 10 / 10
  • SPF 15 / 15
  • DKIM 20 / 20
  • DMARC 25 / 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
Self-hosted / other
Provider jurisdiction
USA · MX: US
Detection confidence
85 / 100
Microsoft tenant
Managed · Default Directory
Tenant region
EU
Signals (3)
Domain verificationGoogle Workspacegoogle-site-verification=MdLFjcUWc94ky7E
NetworkAmazonAS16509 AMAZON-02 - Amazon.com, Inc.
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
10 mail-0.dukascopy.com 16.62.220.123 AS16509 AMAZON-02 - Amazon.com, Inc. US –

SPF

v=spf1 ip4:194.8.15.0/24 ip4:16.62.220.123/32 -all
all
-all
DNS lookups
0 / 10
IPv4
257 addresses authorised directly

DMARC

v=DMARC1; p=reject; sp=reject; pct=100; rua=mailto:dmarc@dukascopy.com; ruf=mailto:dmarc@dukascopy.com
Policy
p=reject
Subdomains (sp)
reject
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
dmarc@dukascopy.com
Forensic reports (ruf)
dmarc@dukascopy.com

DKIM

SelectorKeydelegated to
default RSA 1024 –

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.

Google

History

  • Score 80 · DMARC reject

All changes of this organisation in the change log →

Raw data
dukascopy.com. IN MX 10 mail-0.dukascopy.com.
dukascopy.com. IN TXT "v=spf1 ip4:194.8.15.0/24 ip4:16.62.220.123/32 -all"
_dmarc.dukascopy.com. IN TXT "v=DMARC1; p=reject; sp=reject; pct=100; rua=mailto:dmarc@dukascopy.com; ruf=mailto:dmarc@dukascopy.com"

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