Schweizer Jugendherbergen
youthhostel.ch
- Industry
- Tourism & hospitality
- Headquarters
- Zürich, Zurich
- Type
- private
- Employees (approx.)
- 400
- Checked on
- 19 October 2026
Protection against forged senders: largely protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 0 / 20
- DMARC 19 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 57.3 ▼ 13.3
- Canton avg.: 53 ▼ 9
- Overall avg.: 53.5 ▼ 9.5
- Rank 34 of 38 in the industry
Findings
-
!SPF close to the 10-lookup limit (10)
One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
-
!No DKIM key found
No key was found under more than 100 common selectors. A custom selector is possible, but without DKIM there is no cryptographic sender check.
-
!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.
Who runs the mail?
- Mailbox provider
- Self-hosted / other
- Provider jurisdiction
- Switzerland · MX: CH
- Detection confidence
- 85 / 100
- Microsoft tenant
- Managed · SJH
- Tenant region
- EU
Signals (3)
| SPF | Microsoft 365 | include:spf.protection.outlook.com |
|---|---|---|
| Domain verification | Google Workspace | google-site-verification=f6TVzmwUOh86pb8 |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | youthhostel.ch.1.0001.arsmtp.com | 5.152.188.20 | AS203160 OPENTEXT-AS-EU - Open Text Corporation | CH | – |
| 20 | youthhostel.ch.2.0001.arsmtp.com | 5.152.185.135 | AS59519 APPRIVER-RIPE - Zix International AG | CH | – |
SPF
v=spf1 include:spf.protection.outlook.com include:spf.crsend.com include:_spf.mailgun.org include:spf-de.emailsignatures365.com include:_spf.efm.de a:hostels32.assd.com a:rtp-svc07.rtphosting.ch a:spf.trendhosting-net.ch ip4:213.133.121.48 -all- all
-all- DNS lookups
- 10 / 10
- Includes
spf.protection.outlook.comspf.crsend.com_spf.mailgun.orgspf-de.emailsignatures365.com_spf.efm.de- Detected sending services
- Microsoft 365, Mailgun
- IPv4
- 1 addresses authorised directly
DMARC
v=DMARC1; p=quarantine; pct=100; rua=mailto:dkim-reports-rua@youthhostel.ch; ruf=mailto:dkim-reports-ruf@youthhostel.ch;- Policy
- p=quarantine
- Subdomains (sp)
- inherits p=quarantine
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dkim-reports-rua@youthhostel.ch- Forensic reports (ruf)
dkim-reports-ruf@youthhostel.ch
DKIM
No DKIM key found
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.
GoogleMeta/Facebook
History
- Score 44 · DMARC quarantine
Raw data
youthhostel.ch. IN MX 10 youthhostel.ch.1.0001.arsmtp.com.
youthhostel.ch. IN MX 20 youthhostel.ch.2.0001.arsmtp.com.
youthhostel.ch. IN TXT "v=spf1 include:spf.protection.outlook.com include:spf.crsend.com include:_spf.mailgun.org include:spf-de.emailsignatures365.com include:_spf.efm.de a:hostels32.assd.com a:rtp-svc07.rtphosting.ch a:spf.trendhosting-net.ch ip4:213.133.121.48 -all"
_dmarc.youthhostel.ch. IN TXT "v=DMARC1; p=quarantine; pct=100; rua=mailto:dkim-reports-rua@youthhostel.ch; ruf=mailto:dkim-reports-ruf@youthhostel.ch;"