EU clients' notice emails move to Mailcrest's EU account

Project: Operations
Type: Change
Status: Done Done
Priority: Medium
Organization: Halden Foods
Reporter: Mira Holm <mira.holm@acme-hq.example>
Assignee: Elif Yildiz <elif.yildiz@acme-hq.example>
Labels: data-residencymailcresthalden-foods
Components: notifierinfrastructure
Created: 13 Oct 2026, 13:00 UTC
Updated: 19 Oct 2026, 08:50 UTC
Resolved: 16 Oct 2026, 08:30 UTC

Description

ACM-305, option b (Mira, 13 October): a second Mailcrest account in its EU region, so EU clients' emails and Mailcrest's logs of them stay in the EU. Built in Emargen as ACM-304, a task of ACM-296. UK and US clients stay on the original US account.

Friday 16 October, 10:00. Friday change agreed with Mira, for Halden.
src/send/sendNotice.ts picks the account by the client's region.
Test notices to EU staging organisations; check in both accounts' logs where they left from.
Bounce alarm per account. Status page: planned notice, no interruption expected.
Confluence SEC › Sub-processors updated by Maja.

Linked issues

relates to ENG-1804 Keep Halden's data in the EU (mirrored from ACM-296) Done
relates to SUP-1249 Vossberg: notification emails come from new servers since Friday Done
relates to ENG-1818 Reminders for EU clients still go through the US mail account Done

Comments (3)

Elif Yildiz · 16 Oct 2026, 08:25 UTC

Done. Test notices to EU staging organisations left from the EU account; nothing for EU clients in the US account's log since 10:00.

Maja Schulz · 16 Oct 2026, 09:00 UTC

Sub-processor list updated: Mailcrest EU for EU clients, Mailcrest US for UK and US clients.

Elif Yildiz · 19 Oct 2026, 08:50 UTC

Only Vossberg noticed, because their gateway logs sending hosts (SUP-1249). No bounces or change in delivery for any EU client. Reminders were the exception: ENG-1818.