Weidmann

weidmann-group.com

Industry: Chemicals & materials
Headquarters: Rapperswil-Jona, St. Gallen
Type: private
Employees (approx.): 3,000
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.: 56.8 ▲ 7.2
Canton avg.: 52.3 ▲ 11.7
Overall avg.: 53.5 ▲ 10.5
Rank 18 of 32 in the industry

Findings

!SPF close to the 10-lookup limit (10)

One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
!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
Provider jurisdiction: USA · MX: US
Detection confidence: 100 / 100
Microsoft tenant: Managed · Weidmann Group
Tenant region: EU

Signals (6)

MX	Microsoft 365	`weidmanngroup-com02b.mail.protection.outlook.com`
SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-weidmanngroup-com02b._domainkey.weidmanngroup.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Network	Microsoft 365	`AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
0	`weidmanngroup-com02b.mail.protection.outlook.com`	`52.101.185.14`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US	–
		`52.101.185.13`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US
		`52.101.185.12`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US

SPF

v=spf1 ip4:85.10.62.134 ip4:195.29.222.69 ip4:193.37.159.25 ip4:103.244.53.32 ip4:212.86.218.246 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.exclaimer.net ip4:89.163.135.239 include:mailgun.org include:mandrillapp.com -all

all: -all
DNS lookups: 10 / 10
Includes: spf.protection.outlook.comservers.mcsv.netspf.exclaimer.netmailgun.orgmandrillapp.com
Detected sending services: Microsoft 365, Mailchimp/Mandrill, Mailgun, Mailchimp Transactional
IPv4: 6 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; rua=mailto:d@weidmann-group.com,mailto:dmarc_agg@vali.email,mailto:ks7wk7rn3d@rua.powerdmarc.com; ruf=mailto:d@weidmann-group.com,mailto:dmarc_agg@vali.email,mailto:ks7wk7rn3d@ruf.powerdmarc.com; fo=1;

Policy: p=quarantine
Subdomains (sp): inherits p=quarantine
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): d@weidmann-group.comdmarc_agg@vali.emailks7wk7rn3d@rua.powerdmarc.com
Forensic reports (ruf): d@weidmann-group.comdmarc_agg@vali.emailks7wk7rn3d@ruf.powerdmarc.com
Report services: PowerDMARC

DKIM

Selector	Key	delegated to
`k2`	RSA 2048	`dkim2.mcsv.net`
`k3`	RSA 2048	`dkim3.mcsv.net`
`s1`	RSA 1024	–
`selector1`	RSA 2048	`selector1-weidmanngroup-com02b._domainkey.weidmanngroup.onmicrosoft.com`
`selector2`	RSA 2048	`selector2-weidmanngroup-com02b._domainkey.weidmanngroup.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

History

18 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

weidmann-group.com. IN MX 0 weidmanngroup-com02b.mail.protection.outlook.com.
weidmann-group.com. IN TXT "v=spf1 ip4:85.10.62.134 ip4:195.29.222.69 ip4:193.37.159.25 ip4:103.244.53.32 ip4:212.86.218.246 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.exclaimer.net ip4:89.163.135.239 include:mailgun.org include:mandrillapp.com -all"
_dmarc.weidmann-group.com. IN TXT "v=DMARC1; p=quarantine; rua=mailto:d@weidmann-group.com,mailto:dmarc_agg@vali.email,mailto:ks7wk7rn3d@rua.powerdmarc.com; ruf=mailto:d@weidmann-group.com,mailto:dmarc_agg@vali.email,mailto:ks7wk7rn3d@ruf.powerdmarc.com; fo=1;"

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