ABB

abb.com

Industry: Machinery & electrical
Headquarters: Zürich, Zurich
Type: listed
Employees (approx.): 105,000
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.: 62.2 ▲ 5.8
Canton avg.: 53 ▲ 15
Overall avg.: 53.5 ▲ 14.5
Rank 45 of 112 in the industry

Findings

!SPF close to the 10-lookup limit (8)

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
Upstream gateway: Proofpoint
Provider jurisdiction: USA · MX: US
Detection confidence: 100 / 100
Microsoft tenant: Federated · ABB
Tenant region: EU
Federated via: stsint.abb.com

Signals (7)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-abb-com._domainkey.abb.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Domain verification	Microsoft 365	`MS=ms29062192`
Domain verification	Google Workspace	`google-site-verification=dWyR2UStLo390rl`
Domain verification	Amazon	`amazonses:y79G+4Ei8w63xO8nOasceQwTerxyYJ`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Federated)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`mxa-00661e01.gslb.pphosted.com`	`143.55.150.29`	AS52129 PROOFPOINT-ASN-EU - Proofpoint, Inc.	US	–
10	`mxb-00661e01.gslb.pphosted.com`	`66.159.232.137`	AS52129 PROOFPOINT-ASN-EU - Proofpoint, Inc.	US	–

SPF

v=spf1 include:spf.abb.com include:aspmx.pardot.com include:_spf.anpdm.com include:spf.mandrillapp.com ip4:212.108.233.70 ip4:203.19.232.232 ip4:92.52.113.146 ip4:92.52.113.148 ip4:80.80.228.50 ip4:168.138.226.49 ip4:5.61.115.80/29 ~all

all: ~all
DNS lookups: 8 / 10
Includes: spf.abb.comaspmx.pardot.com_spf.anpdm.comspf.mandrillapp.com
Detected sending services: Microsoft 365, Adobe Campaign/Marketo, Mailchimp/Mandrill, Mailchimp Transactional
IPv4: 14 addresses authorised directly

DMARC

v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc_agg@vali.email,mailto:abbcomdmarcrua@abb.com

Policy: p=reject
Subdomains (sp): reject
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc_agg@vali.emailabbcomdmarcrua@abb.com

DKIM

Selector	Key	delegated to
`a1`	RSA 2048	`a1.domainkey.u34334597.wl098.sendgrid.net`
`cm`	RSA 1024	–
`k1`	RSA 2048	`k1.domainkey.u1694426.wl177.sendgrid.net`
`k2`	RSA 2048	`dkim2.mcsv.net`
`k3`	RSA 2048	`dkim3.mcsv.net`
`m1`	RSA 2048	–
`mailo`	RSA 1024	–
`mandrill`	RSA 1024	–
`s1`	RSA 2048	`s1.domainkey.u1130200.wl201.sendgrid.net`
`s2`	RSA 2048	`s2.domainkey.u1130200.wl201.sendgrid.net`
`salesforce`	RSA 1024	`salesforce.d3z1l4.custdkim.salesforce.com`
`selector1`	RSA 2048	`selector1-abb-com._domainkey.abb.onmicrosoft.com`
`selector2`	RSA 2048	`selector2-abb-com._domainkey.abb.onmicrosoft.com`
`smtpapi`	RSA 1024	–

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 365GoogleMeta/FacebookAtlassianAmazon SES

History

18 October 2026 Score 68 · DMARC reject

All changes of this organisation in the change log →

Raw data

abb.com. IN MX 10 mxa-00661e01.gslb.pphosted.com.
abb.com. IN MX 10 mxb-00661e01.gslb.pphosted.com.
abb.com. IN TXT "v=spf1 include:spf.abb.com include:aspmx.pardot.com include:_spf.anpdm.com include:spf.mandrillapp.com ip4:212.108.233.70 ip4:203.19.232.232 ip4:92.52.113.146 ip4:92.52.113.148 ip4:80.80.228.50 ip4:168.138.226.49 ip4:5.61.115.80/29 ~all"
_dmarc.abb.com. IN TXT "v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc_agg@vali.email,mailto:abbcomdmarcrua@abb.com"

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