Sunrise

sunrise.ch

Industry: Telecom, IT & media
Headquarters: Opfikon, Zurich
Type: listed
Employees (approx.): 2,800
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.: 63.6 ▲ 0.4
Canton avg.: 53 ▲ 11
Overall avg.: 53.5 ▲ 10.5
Rank 31 of 50 in the industry

Findings

!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: Self-hosted / other
Provider jurisdiction: Europe · MX: NL
Detection confidence: 85 / 100
Microsoft tenant: Managed · sunrise.ch
Tenant region: EU

Signals (3)

Domain verification	Google Workspace	`google-site-verification=4yZ30LuvNSxBxGa`
SPF	Swiss hoster	`include:spf.sunrise.ch`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`mxin1-sunrise-ch.edge.unified.services`	`94.169.2.2`	AS6830 LibertyGlobal - Liberty Global Europe Holding B.V.	NL	–
10	`mxin2-sunrise-ch.edge.unified.services`	`94.169.2.2`	AS6830 LibertyGlobal - Liberty Global Europe Holding B.V.	NL	–

SPF

v=spf1  include:spf.sunrise.ch include:spf.sunrise.net include:spf-sunrise-ch.cname.unified.services -all

all: -all
DNS lookups: 3 / 10
Includes: spf.sunrise.chspf.sunrise.netspf-sunrise-ch.cname.unified.services

DMARC

v=DMARC1; p=quarantine; rua=mailto:jn2qdxcl@ag.eu.dmarcadvisor.com; ruf=mailto:jn2qdxcl@fr.eu.dmarcadvisor.com;

Policy: p=quarantine
Subdomains (sp): inherits p=quarantine
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): jn2qdxcl@ag.eu.dmarcadvisor.com
Forensic reports (ruf): jn2qdxcl@fr.eu.dmarcadvisor.com
Report services: DMARC Advisor

DKIM

Selector	Key	delegated to
`s1`	RSA 1024	`s1.domainkey.u6822718.wl219.sendgrid.net`
`s2`	RSA 1024	`s2.domainkey.u6822718.wl219.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: missing

Verified services

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

GoogleGlobalSign

History

18 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

sunrise.ch. IN MX 10 mxin1-sunrise-ch.edge.unified.services.
sunrise.ch. IN MX 10 mxin2-sunrise-ch.edge.unified.services.
sunrise.ch. IN TXT "v=spf1  include:spf.sunrise.ch include:spf.sunrise.net include:spf-sunrise-ch.cname.unified.services -all"
_dmarc.sunrise.ch. IN TXT "v=DMARC1; p=quarantine; rua=mailto:jn2qdxcl@ag.eu.dmarcadvisor.com; ruf=mailto:jn2qdxcl@fr.eu.dmarcadvisor.com;"

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