Lonza

lonza.com

Industry: Pharma & biotech
Headquarters: Basel, Basel-City
Type: listed
Employees (approx.): 18,000
Checked on: 19 October 2026

68/100Grade B

Protection against forged senders: protected

Points per criterion

MX 10 / 10
SPF 13 / 15
DKIM 20 / 20
DMARC 25 / 25
DNSSEC 0 / 10
Transport (MTA-STS/DANE) 0 / 15
TLS-RPT 0 / 5

Industry avg.: 65.5 ▲ 2.5
Canton avg.: 57.4 ▲ 10.6
Overall avg.: 53.5 ▲ 14.5
Rank 12 of 24 in the industry

Findings

!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
Provider jurisdiction: USA · MX: CH
Detection confidence: 40 / 100
Microsoft tenant: Managed · Lonza AG
Tenant region: EU

Signals (3)

Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Domain verification	Google Workspace	`google-site-verification=C_2kS9loJI8Oypj`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`smtp1.lonza.com`	`91.220.100.17`	AS51817 LONZA-AS - Lonza AG	CH	–
20	`smtp2.lonza.com`	`91.220.100.18`	AS51817 LONZA-AS - Lonza AG	CH	–

SPF

v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

all: ~all
DNS lookups: 1 / 10

DMARC

v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; ruf=mailto:MTE0MDQ1@ruf.vali.email

Policy: p=reject
Subdomains (sp): inherits p=reject
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc_agg@vali.email
Forensic reports (ruf): MTE0MDQ1@ruf.vali.email

DKIM

Selector	Key	delegated to
`k2`	RSA 2048	`dkim2.mcsv.net`
`k3`	RSA 2048	`dkim3.mcsv.net`
`m1`	RSA 2048	–
`mailjet`	RSA 2048	–

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.

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History

18 October 2026 Score 68 · DMARC reject

All changes of this organisation in the change log →

Raw data

lonza.com. IN MX 10 smtp1.lonza.com.
lonza.com. IN MX 20 smtp2.lonza.com.
lonza.com. IN TXT "v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
_dmarc.lonza.com. IN TXT "v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; ruf=mailto:MTE0MDQ1@ruf.vali.email"

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