Information notices

Information notice Information Notice about vulnerabilities and fixes in SEPPmail Appliances

Information Notice about vulnerabilities and fixes in SEPPmail Appliances

A number of vulnerabilities have been reported through SEPPmails Responsible Disclosure process, and subsequently reported to the swiss National Center for Cybersecurity (NCSC).
The critical issues reported have been fixed in appliance release 15.0.1.
In seppmail.cloud, the critical issues have been patched in November 2025, and some findings with lower severity have been deployed in seppmail.cloud in line with...

Information notice New Hotfix Appliance Release 15.0.2.1

A new SEPPmail Appliance hotfix release has been published that updates OpenSSL to version 3.0.19 and addresses multiple security findings:

CVE-2025-15467
CVE-2025-68160
CVE-2025-69418
CVE-2025-69419
CVE-2025-69420
CVE-2025-69421
CVE-2026-22795
CVE-2026-22796

Global Services Operational

90 days ago % Uptime Today

Cloud REST API Operational

90 days ago % Uptime Today

Quarantine Reports Operational

90 days ago % Uptime Today

2FA SMS Service Provider Operational

Service Provider to send two-factor authentication via SMS

90 days ago % Uptime Today

Swisssign Certificate Authority Operational

90 days ago % Uptime Today

CH Instance Operational

Mailflow CH Instance Operational

90 days ago % Uptime Today

GINA Interface Operational

90 days ago % Uptime Today

EU Instance Operational

Mailflow EU Instance Operational

90 days ago % Uptime Today

External Services Operational

Services external to seppmail.cloud for which SEPPmail is not directly responsible. This section is used to notify about incidents involving third-party services which may impact our partners and customers.

M365 Mailhosting Operational

Mailflow to or from Microsoft365

90 days ago % Uptime Today

DNS-Providers Operational

DNS-related providers (registrars, hosting of authoritative zones, ISP or independent resolver services)

90 days ago % Uptime Today

Non-SEPPmail-related incidents Operational

We list incidents which are not directly related to SEPPmail, but which may have an impact on customers under this service. Examples include, but are not limited to: new botnets or spam waves, major security threats involving e-mail services, outages of globally or locally relevant major services.

SEPPmail Appliances Operational

Licence and Update Services Operational

Appliance Release Info Operational

Website Operational

Scheduled maintenances

Scheduled maintenance Planned maintenance of seppmail.cloud: Updates DE Cloud from 2026-03-04 10:00 CET to 2026-03-04 15:00 CET

[Scheduled]

Update of all appliance systems in DE instance.

No outage is expected, but some delay in sending and receiving e-mails may be possible. Short disruption of our cloud portal may also happen, please try again a couple of minutes later in that case.

Scheduled maintenance Planned maintenance of seppmail.cloud: Updates CH Cloud from 2026-03-05 10:00 CET to 2026-03-05 16:00 CET

[Scheduled]

Update of all appliance systems in CH instance.

No outage is expected, but some delay in sending and receiving e-mails may be possible. Short disruption of our cloud portal may also happen, please try again a couple of minutes later in that case.

Past Incidents

Scheduled maintenance Increase resources on EU mailflow infrastructure from 2026-02-26 06:00 CET to 2026-02-26 09:00 CET

[Scheduled]

We are including a new data centre location in the cluster. This will improve redundancy and performance in the future.

No outage is expected, but some delay in sending and receiving e-mails may be possible.

Incident & maintenance history

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