Swiss Life

swisslife.ch

Industry: Insurance
Headquarters: Zürich, Zurich
Type: listed
Employees (approx.): 10,000
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.: 58.6 ▲ 5.4
Canton avg.: 53 ▲ 11
Overall avg.: 53.5 ▲ 10.5
Rank 17 of 35 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: Microsoft 365
Provider jurisdiction: USA · MX: CH
Detection confidence: 99 / 100
Microsoft tenant: Managed · Swiss Life AG
Tenant region: EU

Signals (4)

SPF	Microsoft 365	`include:spf.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-swisslife-ch._domainkey.swisslife.onmicrosoft.com`
Domain verification	Microsoft 365	`MS=ms57766517`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
10	`mail.swisslife.ch`	`80.255.97.32`	AS24585 CH-Swisslife - Swiss Life AG	CH	–
10	`mail2.swisslife.ch`	`80.255.97.33`	AS24585 CH-Swisslife - Swiss Life AG	CH	–

SPF

v=spf1 mx include:spf.protection.outlook.com include:_spf-cfp.cloud.swisslife.com -all

all: -all
DNS lookups: 3 / 10
Includes: spf.protection.outlook.com_spf-cfp.cloud.swisslife.com
Detected sending services: Microsoft 365

DMARC

v=DMARC1; p=quarantine; rua=mailto:DMARC-Reporting@swisslife.ch; fo=1

Policy: p=quarantine
Subdomains (sp): inherits p=quarantine
Share (pct): 100 %
Alignment DKIM/SPF: relaxed / relaxed
Aggregate reports (rua): DMARC-Reporting@swisslife.ch

DKIM

Selector	Key	delegated to
`default`	RSA 2048	–
`selector1`	RSA 1024	`selector1-swisslife-ch._domainkey.swisslife.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 365AppleAtlassianCisco WebexOneTrustCanvaTeamViewer

History

18 October 2026 Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data

swisslife.ch. IN MX 10 mail.swisslife.ch.
swisslife.ch. IN MX 10 mail2.swisslife.ch.
swisslife.ch. IN TXT "v=spf1 mx include:spf.protection.outlook.com include:_spf-cfp.cloud.swisslife.com -all"
_dmarc.swisslife.ch. IN TXT "v=DMARC1; p=quarantine; rua=mailto:DMARC-Reporting@swisslife.ch; fo=1"