Graubündner Kantonalbank
gkb.ch
61/100Grade C
Protection against forged senders: not protected (monitoring only)
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 6 / 25
- DNSSEC 10 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 54.8 ▲ 6.2
- Canton avg.: 47.2 ▲ 13.8
- Overall avg.: 53.5 ▲ 7.5
- Rank 41 of 98 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.
-
!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
- Microsoft 365
- Provider jurisdiction
- USA · MX: CH
- Detection confidence
- 40 / 100
- Microsoft tenant
- Managed · Graubündner Kantonalbank
- Tenant region
- EU
Signals (2)
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
|---|---|---|
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | mx1.gkb.ch | 185.178.62.9 | AS206662 inventx_ch - Inventx AG | CH | – |
| 20 | mx2.gkb.ch | 185.178.62.10 | AS206662 inventx_ch - Inventx AG | CH | – |
| 30 | mx3.gkb.ch | 185.178.62.54 | AS206662 inventx_ch - Inventx AG | CH | – |
| 40 | mx4.gkb.ch | 185.178.62.55 | AS206662 inventx_ch - Inventx AG | CH | – |
SPF
v=spf1 mx include:spf.umantis.com include:spf.abacuscity.ch include:mailing.eqs.com include:_spf.general.transactional-mail-a.com -all- all
-all- DNS lookups
- 6 / 10
- Includes
spf.umantis.comspf.abacuscity.chmailing.eqs.com_spf.general.transactional-mail-a.com- Detected sending services
- Mailjet
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 |
|---|---|---|
mailjet | 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
Verified services
From verification records in the domain TXT: services where the domain is verified.
Meta/FacebookAtlassianAdobeFigma
History
- Score 61 · DMARC none
Raw data
gkb.ch. IN MX 10 mx1.gkb.ch.
gkb.ch. IN MX 20 mx2.gkb.ch.
gkb.ch. IN MX 30 mx3.gkb.ch.
gkb.ch. IN MX 40 mx4.gkb.ch.
gkb.ch. IN TXT "v=spf1 mx include:spf.umantis.com include:spf.abacuscity.ch include:mailing.eqs.com include:_spf.general.transactional-mail-a.com -all"
_dmarc.gkb.ch. IN TXT "v=DMARC1;p=none"