Email is where contracts, invoices and sensitive documents live. A migration has to be boring, complete and compliant with your data-handling commitments.
Three things that matter most in Luxembourg
- Document where mailboxes are hosted today and where they will live after the move, and confirm it matches client expectations.
- Run a pilot with a few users and compare folder counts, calendars and shared access before moving everyone.
- Update SPF, DKIM and DMARC at cut-over so deliverability stays high from the first message.
A practical checklist
Use this list as a starting point and adapt it to your size, sector and the advice of your local professionals. It is general guidance, not legal or tax advice.
- Update SPF, DKIM and DMARC at cut-over and send test messages to major providers.
- Lower DNS time-to-live a few days before cut-over so changes take effect quickly.
- List every mailbox, alias, shared resource, domain and integration before changing anything.
- Use delta syncs so mail that arrives during the move is not lost.
- Keep the old system available read-only for a short period, then decommission with a written plan.
Local context: Luxembourg
Businesses in Luxembourg operate under 17% VAT, supervised by the Administration de l'enregistrement, des domaines et de la TVA, and commonly use S.à r.l. and S.A. companies. On invoicing and digital records: e-invoicing requirements for public contracts via Peppol. Records and reporting expectations follow from this: Luxembourg GAAP reporting and periodic VAT returns. Where your data sits also matters, so check the hosting region you choose, for example the Zoho EU data centre.
How StackWebs can help
Whether you are in Mamer, Clervaux or elsewhere in Luxembourg, a short call is usually enough to confirm scope, timeline and cost in EUR.