Glarner Kantonalbank

glkb.ch

Industry
Banking
Headquarters
Glarus, Glarus
Type
listed
Employees (approx.)
230
Checked on
19 October 2026
64/100Grade C

Protection against forged senders: largely protected

Points per criterion

  • MX 10 / 10
  • SPF 15 / 15
  • DKIM 20 / 20
  • DMARC 19 / 25
  • DNSSEC 0 / 10
  • Transport (MTA-STS/DANE) 0 / 15
  • TLS-RPT 0 / 5

Findings

  • !SPF close to the 10-lookup limit (8)

    One more sending service can break the limit. Flattening or subdomains for third parties create headroom.

  • !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.

  • !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.

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider
Microsoft 365
Provider jurisdiction
USA · MX: CH
Detection confidence
84 / 100
Microsoft tenant
Federated · Glarner Kantonalbank
Tenant region
EU
Federated via
sts.kbglarus.ch
Signals (6)
SPFMicrosoft 365include:spf.protection.outlook.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
Domain verificationMicrosoft 365MS=ms15599577
Domain verificationGoogle Workspacegoogle-site-verification=bzpSZiZTZef679N
SPFAmazoninclude:amazonses.com
Entra IDMicrosoft 365Entra-ID-Tenant (Federated)

MX servers

PrefHostIPNetworkCountryTLSA
10 mail.glkb.ch 195.138.215.188 AS41632 GLKB - Glarner Kantonalbank CH –

SPF

v=spf1 a:mail.glkb.ch a:mail01.mychoice.ch a:mail02.mychoice.ch a:c.spf.service-now.com ip4:195.138.215.0/24 ip4:185.93.140.0/22 include:spf.protection.outlook.com include:mailing.eqs.com include:amazonses.com -all
all
-all
DNS lookups
8 / 10
Includes
spf.protection.outlook.commailing.eqs.comamazonses.com
Detected sending services
Microsoft 365, Mailjet, Amazon SES
IPv4
1,280 addresses authorised directly

DMARC

v=DMARC1; p=quarantine; ruf=mailto:dmarc-f@glkb.ch; ri=604800; fo=1
Policy
p=quarantine
Subdomains (sp)
inherits p=quarantine
Share (pct)
100 %
Alignment DKIM/SPF
relaxed / relaxed
Aggregate reports (rua)
–
Forensic reports (ruf)
dmarc-f@glkb.ch

DKIM

SelectorKeydelegated to
mailjet RSA 1024 –

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.

Microsoft 365Google

History

  • Score 64 · DMARC quarantine

All changes of this organisation in the change log →

Raw data
glkb.ch. IN MX 10 mail.glkb.ch.
glkb.ch. IN TXT "v=spf1 a:mail.glkb.ch a:mail01.mychoice.ch a:mail02.mychoice.ch a:c.spf.service-now.com ip4:195.138.215.0/24 ip4:185.93.140.0/22 include:spf.protection.outlook.com include:mailing.eqs.com include:amazonses.com -all"
_dmarc.glkb.ch. IN TXT "v=DMARC1; p=quarantine; ruf=mailto:dmarc-f@glkb.ch; ri=604800; fo=1"

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