Truvag

truvag.ch

Industry: Consulting & audit
Headquarters: Sursee, Lucerne
Type: private
Employees (approx.): 200
Checked on: 19 October 2026

91/100Grade A

Protection against forged senders: protected, with a gap: subdomains not protected (sp=none)

Points per criterion

MX 10 / 10
SPF 15 / 15
DKIM 20 / 20
DMARC 25 / 25
DNSSEC 10 / 10
Transport (MTA-STS/DANE) 6 / 15
TLS-RPT 5 / 5

Industry avg.: 66.8 ▲ 24.2
Canton avg.: 56.6 ▲ 34.4
Overall avg.: 53.5 ▲ 37.5
Rank 5 of 45 in the industry

Findings

!Subdomains unprotected (sp=none)

The main domain is protected, but subdomains such as invoice.company.ch can still be forged.
!DKIM key below 2048 bits

RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.
!MTA-STS in testing mode only

mode: testing reports failures but enforces nothing.
iStrict DMARC alignment

adkim=s or aspf=s requires exact domain matches. Secure, but demanding when sending from subdomains.

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider: Microsoft 365
Provider jurisdiction: USA · MX: US
Detection confidence: 86 / 100
Microsoft tenant: Managed · Truvag AG
Tenant region: EU

Signals (5)

MX	Microsoft 365	`truvag-ch.mail.protection.outlook.com`
DKIM	Microsoft 365	`selector1 → selector1-truvag-ch._domainkey.truvag.onmicrosoft.com`
Autodiscover	Microsoft 365	`autodiscover.outlook.com`
Network	Microsoft 365	`AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation`
Entra ID	Microsoft 365	`Entra-ID-Tenant (Managed)`

MX servers

Pref	Host	IP	Network	Country	TLSA
0	`truvag-ch.mail.protection.outlook.com`	`52.101.185.14`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US	–
		`52.101.187.1`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US
		`52.101.185.13`	AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	US

SPF

v=spf1 include:spf.abacuscity.ch include:mh3nyj2zn3.powerspf.com -all

all: -all
DNS lookups: 4 / 10
Includes: spf.abacuscity.chmh3nyj2zn3.powerspf.com

DMARC

v=DMARC1; p=reject; sp=none; adkim=s; aspf=s; rua=mailto:obhcv2lps0@rua.powerdmarc.com; ruf=mailto:obhcv2lps0@ruf.powerdmarc.com; fo=1;

Policy: p=reject
Subdomains (sp): none
Share (pct): 100 %
Alignment DKIM/SPF: strict / strict
Aggregate reports (rua): obhcv2lps0@rua.powerdmarc.com
Forensic reports (ruf): obhcv2lps0@ruf.powerdmarc.com
Report services: PowerDMARC

DKIM

Selector	Key	delegated to
`s1`	RSA 2048	`s1.domainkey.u5743641.wl142.sendgrid.net`
`s2`	RSA 1024	`s2.domainkey.u5743641.wl142.sendgrid.net`
`selector1`	RSA 2048	`selector1-truvag-ch._domainkey.truvag.onmicrosoft.com`
`selector2`	RSA 2048	`selector2-truvag-ch._domainkey.truvag.onmicrosoft.com`

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

Transport encryption

MTA-STS: Mode: testing · max_age: 86,400 s · covers all MX: yes
mx: truvag-ch.mail.protection.outlook.com
DANE: missing
DNSSEC: active
TLS-RPT: mailto:obhcv2lps0@tls.powerdmarc.com
BIMI: missing

Verified services

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

Apple

History

19 October 2026 Score 91 · DMARC reject

All changes of this organisation in the change log →

Raw data

truvag.ch. IN MX 0 truvag-ch.mail.protection.outlook.com.
truvag.ch. IN TXT "v=spf1 include:spf.abacuscity.ch include:mh3nyj2zn3.powerspf.com -all"
_dmarc.truvag.ch. IN TXT "v=DMARC1; p=reject; sp=none; adkim=s; aspf=s; rua=mailto:obhcv2lps0@rua.powerdmarc.com; ruf=mailto:obhcv2lps0@ruf.powerdmarc.com; fo=1;"
_mta-sts.truvag.ch. IN TXT "v=STSv1; id=20260807173014569344"
_smtp._tls.truvag.ch. IN TXT "v=TLSRPTv1; rua=mailto:obhcv2lps0@tls.powerdmarc.com"

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