Information notices
Swisssign reduces the period for the domain validation from 365 to 198 days as of March 8th 2026 (and further reduction is planned for March 2027).
As a consequence, all previously validated domains where the validation period is more than 198 days ago would become non-validated on March 8th, and thus no new certificates could be issued.
To avoid the sudden change, re-validation for domains of customers in seppmail.cloud which have been last (re-) validated more than 180 days ago have been...
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...
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
Scheduled maintenances
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.
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.
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.