Welti-Furrer
welti-furrer.ch
- Industry
- Transport & logistics
- Headquarters
- Zürich, Zurich
- Type
- private
- Employees (approx.)
- 600
- Checked on
- 19 October 2026
95/100Grade A
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 13 / 15
- DKIM 20 / 20
- DMARC 25 / 25
- DNSSEC 10 / 10
- Transport (MTA-STS/DANE) 12 / 15
- TLS-RPT 5 / 5
- Industry avg.: 59.9 ▲ 35.1
- Canton avg.: 53 ▲ 42
- Overall avg.: 53.5 ▲ 41.5
- Rank 1 of 67 in the industry
Findings
-
!DKIM key below 2048 bits
RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.
-
iBIMI logo published
A brand logo for mail clients is published (without a certificate large providers do not show it).
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Provider jurisdiction
- USA · MX: US
- Detection confidence
- 100 / 100
- Microsoft tenant
- Managed · Welti-Furrer AG
- Tenant region
- EU
Signals (7)
| MX | Microsoft 365 | weltifurrer-ch01c.mail.protection.outlook.com |
|---|---|---|
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
| DKIM | Microsoft 365 | selector1 → selector1-weltifurrer-ch01c._domainkey.weltifurrerch.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=iHMyl6iEiJIFCwl |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 20 | weltifurrer-ch01c.mail.protection.outlook.com | 52.101.185.13 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.187.1 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.185.14 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 include:spf.crsend.com include:spf.protection.outlook.com include:spf.iway.ch ip4:185.229.91.59 ip4:62.12.128.222 ip4:62.2.194.174 ip4:212.243.95.30 include:spf.academymaker.de include:spf-de.emailsignatures365.com ~all- all
~all- DNS lookups
- 5 / 10
- Includes
spf.crsend.comspf.protection.outlook.comspf.iway.chspf.academymaker.despf-de.emailsignatures365.com- Detected sending services
- Microsoft 365
- IPv4
- 4 addresses authorised directly
DMARC
v=DMARC1; p=reject; sp=reject; rua=mailto:lnbpe5l3q9@rua.dmarc.netscloud.ch; ruf=mailto:lnbpe5l3q9@ruf.dmarc.netscloud.ch; fo=1- Policy
- p=reject
- Subdomains (sp)
- reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
lnbpe5l3q9@rua.dmarc.netscloud.ch- Forensic reports (ruf)
lnbpe5l3q9@ruf.dmarc.netscloud.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
k1 | RSA 1024 | dkim.mcsv.net |
mailjet | RSA 1024 | – |
s1 | RSA 2048 | s1.domainkey.u2806825.wl076.sendgrid.net |
s2 | RSA 1024 | s2.domainkey.u2806825.wl076.sendgrid.net |
selector1 | RSA 1024 | selector1-weltifurrer-ch01c._domainkey.weltifurrerch.onmicrosoft.com |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- Mode: enforce · max_age: 86,400 s · covers all MX: yes
- mx
weltifurrer-ch01c.mail.protection.outlook.com- DANE
- missing
- DNSSEC
- active
- TLS-RPT
mailto:lnbpe5l3q9@tls.dmarc.netscloud.ch- BIMI
- without certificate · Logo
Verified services
From verification records in the domain TXT: services where the domain is verified.
GoogleKnowBe4
History
- Score 95 · DMARC reject
Raw data
welti-furrer.ch. IN MX 20 weltifurrer-ch01c.mail.protection.outlook.com.
welti-furrer.ch. IN TXT "v=spf1 include:spf.crsend.com include:spf.protection.outlook.com include:spf.iway.ch ip4:185.229.91.59 ip4:62.12.128.222 ip4:62.2.194.174 ip4:212.243.95.30 include:spf.academymaker.de include:spf-de.emailsignatures365.com ~all"
_dmarc.welti-furrer.ch. IN TXT "v=DMARC1; p=reject; sp=reject; rua=mailto:lnbpe5l3q9@rua.dmarc.netscloud.ch; ruf=mailto:lnbpe5l3q9@ruf.dmarc.netscloud.ch; fo=1"
_mta-sts.welti-furrer.ch. IN TXT "v=STSv1; id=20261006092153609592"
_smtp._tls.welti-furrer.ch. IN TXT "v=TLSRPTv1; rua=mailto:lnbpe5l3q9@tls.dmarc.netscloud.ch"
default._bimi.welti-furrer.ch. IN TXT "v=BIMI1; l=https://dmarc.netscloud.ch/bimi/48662/a575f94f-156e-4103-8c9c-30c84bbd623c.svg"