TWINT

twint.ch

Industry
Financial services
Headquarters
Zürich, Zurich
Type
private
Employees (approx.)
300
Checked on
19 October 2026
55/100Grade C

Protection against forged senders: protected

Points per criterion

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

Findings

  • ✕SPF exceeds 10 DNS lookups (19)

    More than ten lookups (include, a, mx, ptr, exists, redirect) cause a permerror; many receivers then treat SPF as failed.

  • !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 · TWINT AG
Tenant region
EU
Signals (10)
MXMicrosoft 365twint-ch.mail.protection.outlook.com
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector1 → selector1-twint-ch._domainkey.twintag.onmicrosoft.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
Domain verificationMicrosoft 365MS=ms73526393
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Domain verificationGoogle Workspacegoogle-site-verification=g7J6v44IpY6bFeW
Domain verificationAmazonamazonses:fSwY8q+PUzZrJYvuaH8eXfrEO5vuiN
SPFSwisscominclude:spf.swisscom.com
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
0 twint-ch.mail.protection.outlook.com 52.101.185.13 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US –
52.101.187.1 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US
52.101.185.14 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US

SPF

v=spf1 ip4:193.135.145.142 ip4:193.135.130.54 include:spf.protection.outlook.com include:spf.swisscom.com include:mailgun.org include:servicenow.com a:mx.twt.activeguard.cloud -all
all
-all
DNS lookups
19 / 10
Includes
spf.protection.outlook.comspf.swisscom.commailgun.orgservicenow.com
Detected sending services
Microsoft 365, Swisscom, Mailgun, ServiceNow
IPv4
2 addresses authorised directly

DMARC

v=DMARC1; p=reject; rua=mailto:3208865b28d3328@rep.dmarcanalyzer.com; ruf=mailto:security-operation@twint.ch; fo=1;
Policy
p=reject
Subdomains (sp)
inherits p=reject
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
3208865b28d3328@rep.dmarcanalyzer.com
Forensic reports (ruf)
security-operation@twint.ch

DKIM

SelectorKeydelegated to
s1 RSA 2048 s1.domainkey.u56562733.wl234.sendgrid.net
s2 RSA 2048 s2.domainkey.u56562733.wl234.sendgrid.net
selector1 RSA 2048 selector1-twint-ch._domainkey.twintag.onmicrosoft.com
selector2 RSA 2048 selector2-twint-ch._domainkey.twintag.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 365GoogleAmazon SESMiro

History

  • Score 55 · DMARC reject

All changes of this organisation in the change log →

Raw data
twint.ch. IN MX 0 twint-ch.mail.protection.outlook.com.
twint.ch. IN TXT "v=spf1 ip4:193.135.145.142 ip4:193.135.130.54 include:spf.protection.outlook.com include:spf.swisscom.com include:mailgun.org include:servicenow.com a:mx.twt.activeguard.cloud -all"
_dmarc.twint.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:3208865b28d3328@rep.dmarcanalyzer.com; ruf=mailto:security-operation@twint.ch; fo=1;"

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