Commune de Courrendlin
courrendlin.ch
- Industry
- Municipalities
- Headquarters
- Courrendlin, Jura
- Type
- public
- Population
- 3,737
- FSO no.
- 6708
- Checked on
- 19 October 2026
50/100Grade C
Protection against forged senders: not protected (monitoring only)
Points per criterion
- MX 10 / 10
- SPF 4 / 15
- DKIM 20 / 20
- DMARC 6 / 25
- DNSSEC 10 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 50.9 ▼ 0.9
- Canton avg.: 62.3 ▼ 12.3
- Overall avg.: 53.5 ▼ 3.5
- Rank 1100 of 2077 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.
-
!SPF without a clear fail (?all or no all)
A neutral ending gives receivers no instruction on how to treat unknown servers.
-
!DMARC without reporting (no rua)
Without aggregate reports it stays invisible who sends in the domain's name.
-
!DKIM key below 2048 bits
RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.
-
!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
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 1 | mx1.azinformatique.ch | 185.98.28.4 | AS34271 CDROM - Centre de donnees romand SA | CH | – |
| 2 | mx3.azinformatique.ch | 185.98.28.6 | AS34271 CDROM - Centre de donnees romand SA | CH | – |
| 2 | mx2.azinformatique.ch | 185.98.28.5 | AS34271 CDROM - Centre de donnees romand SA | CH | – |
| 2 | mx4.azinformatique.ch | 185.98.28.7 | AS34271 CDROM - Centre de donnees romand SA | CH | – |
SPF
v=spf1 mx a ip4:185.98.28.97 include:spf.mandrillapp.com ?all- all
?all- DNS lookups
- 3 / 10
- Includes
spf.mandrillapp.com- Detected sending services
- Mailchimp/Mandrill, Mailchimp Transactional
- IPv4
- 1 addresses authorised directly
DMARC
v=DMARC1; p=none;- Policy
- p=none
- Subdomains (sp)
- inherits p=none
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
- –
DKIM
| Selector | Key | delegated to |
|---|---|---|
mandrill | RSA 1024 | – |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- missing
- DANE
- missing
- DNSSEC
- active
- TLS-RPT
- missing
- BIMI
- missing
History
- Score 50 · DMARC none
Raw data
courrendlin.ch. IN MX 1 mx1.azinformatique.ch.
courrendlin.ch. IN MX 2 mx3.azinformatique.ch.
courrendlin.ch. IN MX 2 mx2.azinformatique.ch.
courrendlin.ch. IN MX 2 mx4.azinformatique.ch.
courrendlin.ch. IN TXT "v=spf1 mx a ip4:185.98.28.97 include:spf.mandrillapp.com ?all"
_dmarc.courrendlin.ch. IN TXT "v=DMARC1; p=none;"