SRG SSR

srgssr.ch

Industry: Telecom, IT & media
Headquarters: Bern, Bern
Type: public
Employees (approx.): 7,000
Checked on: 19 October 2026

51/100Grade 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 0 / 10
Transport (MTA-STS/DANE) 0 / 15
TLS-RPT 0 / 5

Industry avg.: 63.6 ▼ 12.6
Canton avg.: 53.1 ▼ 2.1
Overall avg.: 53.5 ▼ 2.5
Rank 42 of 50 in the industry

Findings

✕DMARC in monitoring mode only (p=none)

p=none provides reports but does not reject a single forgery. The goal is p=reject.
!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
Provider jurisdiction: USA · MX: US
Detection confidence: 100 / 100
Microsoft tenant: Managed · SRG SSR
Tenant region: EU

Signals (8)

MX	Microsoft 365	`srgssr-ch.mail.protection.outlook.com`
SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector2 → selector2-srgssr-ch._domainkey.srgssr.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Network	Microsoft 365	`AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation`
Domain verification	Google Workspace	`google-site-verification=y1fYKgaw8hWUDS3`
SPF	Amazon	`include:amazonses.com`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`srgssr-ch.mail.protection.outlook.com`	`52.101.181.156`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US	–
		`52.101.103.137`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US
		`52.101.73.123`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US

SPF

v=spf1 include:protection.srgssr.ch include:spf.protection.outlook.com include:amazonses.com include:spf.imc-hosting.com include:spfa.cpmails.com ip4:46.231.204.210 include:spf.umantis.com -all

all: -all
DNS lookups: 7 / 10
Includes: protection.srgssr.chspf.protection.outlook.comamazonses.comspf.imc-hosting.comspfa.cpmails.comspf.umantis.com
Detected sending services: Microsoft 365, Amazon SES
IPv4: 1 addresses authorised directly

DMARC

v=DMARC1;p=none;rua=mailto:dmarc_agg@vali.email,mailto:DMARC_Report@srgssr.ch;ruf=mailto:DMARC_Report@srgssr.ch;fo=1

Policy: p=none
Subdomains (sp): inherits p=none
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): dmarc_agg@vali.emailDMARC_Report@srgssr.ch
Forensic reports (ruf): DMARC_Report@srgssr.ch

DKIM

Selector	Key	delegated to
`s1`	RSA 2048	`s1.domainkey.u18636557.wl058.sendgrid.net`
`s2`	RSA 1024	`s2.domainkey.u18636557.wl058.sendgrid.net`
`selector2`	RSA 1024	`selector2-srgssr-ch._domainkey.srgssr.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.

GoogleAppleMeta/FacebookAtlassianDocuSignHave I Been PwnedMiroCanvaAutodeskTeamViewer

History

18 October 2026 Score 51 · DMARC none

All changes of this organisation in the change log →

Raw data

srgssr.ch. IN MX 10 srgssr-ch.mail.protection.outlook.com.
srgssr.ch. IN TXT "v=spf1 include:protection.srgssr.ch include:spf.protection.outlook.com include:amazonses.com include:spf.imc-hosting.com include:spfa.cpmails.com ip4:46.231.204.210 include:spf.umantis.com -all"
_dmarc.srgssr.ch. IN TXT "v=DMARC1;p=none;rua=mailto:dmarc_agg@vali.email,mailto:DMARC_Report@srgssr.ch;ruf=mailto:DMARC_Report@srgssr.ch;fo=1"

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