SERVICE ANNOUNCEMENT

## Scheduled System Maintenance **Date:** Thursday, 28 May 2026 **Maintenance Window:** 22:00 – 02:00 (following day) *All times are in the local system timezone (CEST).* --- ### Purpose of Maintenance We are performing essential maintenance on our core infrastructure. This work is required to ensure the ongoing stability, security, and optimal performance of our systems. ### Impacted Services & Expected Impact During this maintenance window, the following services will be affected: - **SMTP Connections:** Intermittent interruptions may occur. Each interruption is expected to last up to **20–30 minutes**. - **Centera Platforms and services:** These platforms will be **unavailable** for up to **20–30 minutes**. ### Recommendations To minimise disruption, please avoid time-sensitive or critical operations that depend on SMTP email delivery. **We strongly advise customers not to send any important or high-priority messages immediately before or during the scheduled maintenance period.** Plan your workflows accordingly. ### We Appreciate Your Understanding We sincerely apologise for any inconvenience this scheduled maintenance may cause. Your patience and cooperation are greatly appreciated as we work to keep our systems reliable and secure. --- *Thank you for your understanding.*