ISS Schweiz

ch.issworld.com

Industry
Staffing & facility services
Headquarters
Zürich, Zurich
Type
private
Employees (approx.)
11,000
Checked on
19 October 2026
61/100Grade C

Protection against forged senders: not protected (monitoring only)

Points per criterion

  • MX 10 / 10
  • SPF 15 / 15
  • DKIM 20 / 20
  • DMARC 6 / 25
  • DNSSEC 10 / 10
  • Transport (MTA-STS/DANE) 0 / 15
  • TLS-RPT 0 / 5

Findings

  • ✕DMARC in monitoring mode only (p=none)

    p=none provides reports but does not reject a single forgery. The goal is p=reject.

  • !External report receiver not authorised

    The authorisation record for an external rua domain is missing (RFC 7489 §7.1); many receivers then send no reports.

  • !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 · ISS World Services AS
Tenant region
EU
Signals (5)
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector1 → selector1-ch-issworld-com._domainkey.issglobal1.onmicrosoft.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
5 ch-issworld-com.mail.eo.outlook.com 52.101.68.12 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US –
52.101.73.123 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US
52.101.181.156 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US

SPF

v=spf1 include:spf.protection.outlook.com include:spf1.issworld.com ip4:185.14.244.9 ip4:185.14.246.9 ip4:185.14.247.9 ip4:46.255.178.139 ip4:185.14.245.9 ip4:185.21.103.163 -all
all
-all
DNS lookups
4 / 10
Includes
spf.protection.outlook.comspf1.issworld.com
Detected sending services
Microsoft 365
IPv4
6 addresses authorised directly

DMARC

v=DMARC1; p=none; rua=mailto:dmarc-rua@group.issworld.com; ruf=mailto:dmarc-rua@group.issworld.com;
Policy
p=none
Subdomains (sp)
inherits p=none
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
dmarc-rua@group.issworld.com
Forensic reports (ruf)
dmarc-rua@group.issworld.com

DKIM

SelectorKeydelegated to
selector1 RSA 2048 selector1-ch-issworld-com._domainkey.issglobal1.onmicrosoft.com
selector2 RSA 2048 selector2-ch-issworld-com._domainkey.issglobal1.onmicrosoft.com

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.

Atlassian

History

  • Score 61 · DMARC none

All changes of this organisation in the change log →

Raw data
ch.issworld.com. IN MX 5 ch-issworld-com.mail.eo.outlook.com.
ch.issworld.com. IN TXT "v=spf1 include:spf.protection.outlook.com include:spf1.issworld.com ip4:185.14.244.9 ip4:185.14.246.9 ip4:185.14.247.9 ip4:46.255.178.139 ip4:185.14.245.9 ip4:185.21.103.163 -all"
_dmarc.ch.issworld.com. IN TXT "v=DMARC1; p=none; rua=mailto:dmarc-rua@group.issworld.com; ruf=mailto:dmarc-rua@group.issworld.com;"

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