I do the same using self-hosted email, and wrote a web UI for Postfix virtual domain management to streamline this: https://github.com/fazalmajid/postmapweb ht

I do the same using self-hosted email, and wrote a web UI for Postfix virtual domain management to streamline this: https://github.com/fazalmajid/postmapweb https://github.com/fazalmajid/postmapweb