Odoo can now use systemd socket activation with its prefork server mode, matching support already available in threaded mode. This gives operations teams more flexibility and consistency when deploying or managing Odoo services.

This commit brings the prefork model to feature parity with the threaded model, allowing systemd socket activation to be used in both cases.

This update adds automated checks to ensure mail alias domain behavior is covered in the enterprise test suite. It helps reduce the risk of regressions in email alias handling without changing customer-facing functionality.

add test for this see https://github.com/odoo/odoo/pull/219223