Celonic

celonic.com

Industry: Pharma & biotech
Headquarters: Basel, Basel-City
Type: private
Employees (approx.): 400
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.: 65.5 ▼ 1.5
Canton avg.: 57.4 ▲ 6.6
Overall avg.: 53.5 ▲ 10.5
Rank 15 of 24 in the industry

Findings

!DKIM key below 2048 bits

RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.
!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: Microsoft 365
Upstream gateway: Hornetsecurity
Provider jurisdiction: USA · MX: DE
Detection confidence: 99 / 100
Microsoft tenant: Managed · Celonic Deutschland GmbH & Co.KG
Tenant region: EU

Signals (4)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-celonic-com._domainkey.celonic.onmicrosoft.com`
Domain verification	Microsoft 365	`MS=ms50753757`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`mx01.hornetsecurity.com`	`94.100.132.8`	AS25394 MK-NETZDIENSTE-AS - MK Netzdienste Verwaltungs GmbH trading as MK Netzdienste GmbH & Co. KG	DE	–
20	`mx02.hornetsecurity.com`	`94.100.136.8`	AS24679 SSERV-AS - kyberio GmbH	DE	–
30	`mx03.hornetsecurity.com`	`94.100.134.8`	AS12676 NCORE-AS - HKN GmbH	DE	–
40	`mx04.hornetsecurity.com`	`94.100.136.7`	AS24679 SSERV-AS - kyberio GmbH	DE	–

SPF

v=spf1 mx a:owahd.celonic.com a:owa.celonic.ch ip4:194.6.165.18 ip4:212.65.26.242 ip4:212.65.26.243 ip4:54.229.2.165 ip4:52.30.130.201 include:_spf.salesforce.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all

all: -all
DNS lookups: 7 / 10
Includes: _spf.salesforce.comspf.hornetsecurity.comspf.protection.outlook.com
Detected sending services: Salesforce, Hornetsecurity, Microsoft 365
IPv4: 5 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; aspf=r; sp=quarantine; rua=mailto:reportdmarc@celonic.com; ruf=mailto:reportdmarc@celonic.com; rf=afrf; pct=100; ri=86400;

Policy: p=quarantine
Subdomains (sp): quarantine
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): reportdmarc@celonic.com
Forensic reports (ruf): reportdmarc@celonic.com

DKIM

Selector	Key	delegated to
`selector1`	RSA 1024	`selector1-celonic-com._domainkey.celonic.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: missing

Verified services

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

Microsoft 365Apple

History

19 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

celonic.com. IN MX 10 mx01.hornetsecurity.com.
celonic.com. IN MX 20 mx02.hornetsecurity.com.
celonic.com. IN MX 30 mx03.hornetsecurity.com.
celonic.com. IN MX 40 mx04.hornetsecurity.com.
celonic.com. IN TXT "v=spf1 mx a:owahd.celonic.com a:owa.celonic.ch ip4:194.6.165.18 ip4:212.65.26.242 ip4:212.65.26.243 ip4:54.229.2.165 ip4:52.30.130.201 include:_spf.salesforce.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all"
_dmarc.celonic.com. IN TXT "v=DMARC1; p=quarantine; aspf=r; sp=quarantine; rua=mailto:reportdmarc@celonic.com; ruf=mailto:reportdmarc@celonic.com; rf=afrf; pct=100; ri=86400;"

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