Ringier

ringier.ch

Industry: Telecom, IT & media
Headquarters: Zürich, Zurich
Type: private
Employees (approx.): 6,800
Checked on: 19 October 2026

70/100Grade B

Protection against forged senders: protected

Points per criterion

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

Industry avg.: 63.6 ▲ 6.4
Canton avg.: 53 ▲ 17
Overall avg.: 53.5 ▲ 16.5
Rank 18 of 50 in the industry

Findings

!SPF close to the 10-lookup limit (9)

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.
iBIMI with mark certificate (VMC/CMC)

Logo with a verified mark certificate, shown by Gmail and Apple Mail among others. Requires DMARC enforcement.

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider: Google Workspace
Provider jurisdiction: USA · MX: US
Detection confidence: 96 / 100
Microsoft tenant: Federated · Ringier AG
Tenant region: EU
Federated via: ringier.okta.com

Signals (8)

Autodiscover	Microsoft 365	`autodiscover-s.outlook.com`
Domain verification	Microsoft 365	`MS=ms52140662`
MX	Google Workspace	`aspmx.l.google.com`
SPF	Google Workspace	`include:_spf.google.com`
DKIM	Google Workspace	`google`
Domain verification	Google Workspace	`google-site-verification=1TT6iz7r1x-Ns2M`
Network	Google Workspace	`AS15169 GOOGLE - Google LLC`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Federated)`

MX servers

Pref	Host	IP	Network	Country	TLSA
1	`aspmx.l.google.com`	`142.251.127.26`	AS15169 GOOGLE - Google LLC	US	–
5	`alt2.aspmx.l.google.com`	`172.253.152.26`	AS15169 GOOGLE - Google LLC	US	–
5	`alt1.aspmx.l.google.com`	`142.250.147.27`	AS15169 GOOGLE - Google LLC	US	–
10	`alt4.aspmx.l.google.com`	`192.178.158.27`	AS15169 GOOGLE - Google LLC	US	–
10	`alt3.aspmx.l.google.com`	`192.179.20.27`	AS15169 GOOGLE - Google LLC	US	–

SPF

v=spf1 include:spf.ringier.ch include:_spf.google.com include:_spf.salesforce.com include:servers.mcsv.net include:sendgrid.net include:spf.umantis.com include:intranet.ringier.com -all

all: -all
DNS lookups: 9 / 10
Includes: spf.ringier.ch_spf.google.com_spf.salesforce.comservers.mcsv.netsendgrid.netspf.umantis.comintranet.ringier.com
Detected sending services: Google, Salesforce, Mailchimp/Mandrill, SendGrid

DMARC

v=DMARC1; p=reject; rua=mailto:dmarc-reports@ringier.ch,mailto:rua@dmarc.brevo.com,mailto:7izvgbal@ag.eu.dmarcadvisor.com; ruf=mailto:dmarc-reports@ringier.ch; fo=1;

Policy: p=reject
Subdomains (sp): inherits p=reject
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc-reports@ringier.chrua@dmarc.brevo.com7izvgbal@ag.eu.dmarcadvisor.com
Forensic reports (ruf): dmarc-reports@ringier.ch
Report services: Brevo, DMARC Advisor

DKIM

Selector	Key	delegated to
`google`	RSA 2048	–
`k1`	RSA 1024	`dkim.mcsv.net`
`mandrill`	RSA 1024	–
`s1`	RSA 2048	`s1.domainkey.u2706795.wl046.sendgrid.net`
`s2`	RSA 1024	`s2.domainkey.u2706795.wl046.sendgrid.net`

Checked: 100 common selectors. Keys under custom selectors remain invisible.

Transport encryption

MTA-STS: missing
DANE: missing
DNSSEC: missing
TLS-RPT: missing
BIMI: VMC/CMC ✓ · Logo

Verified services

From verification records in the domain TXT: services where the domain is verified.

Microsoft 365GoogleAtlassianAdobeCisco WebexOneTrustDropboxMiroBrevoNotion

History

18 October 2026 Score 70 · DMARC reject

All changes of this organisation in the change log →

Raw data

ringier.ch. IN MX 1 aspmx.l.google.com.
ringier.ch. IN MX 5 alt2.aspmx.l.google.com.
ringier.ch. IN MX 5 alt1.aspmx.l.google.com.
ringier.ch. IN MX 10 alt4.aspmx.l.google.com.
ringier.ch. IN MX 10 alt3.aspmx.l.google.com.
ringier.ch. IN TXT "v=spf1 include:spf.ringier.ch include:_spf.google.com include:_spf.salesforce.com include:servers.mcsv.net include:sendgrid.net include:spf.umantis.com include:intranet.ringier.com -all"
_dmarc.ringier.ch. IN TXT "v=DMARC1; p=reject; rua=mailto:dmarc-reports@ringier.ch,mailto:rua@dmarc.brevo.com,mailto:7izvgbal@ag.eu.dmarcadvisor.com; ruf=mailto:dmarc-reports@ringier.ch; fo=1;"
default._bimi.ringier.ch. IN TXT "v=BIMI1; l=https://vmc.digicert.com/12fc940b-b1a5-4c8d-8455-f7ed5102649a.svg; a=…"

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