we're a small company with about 25 mail addresses. Since our current mail provider (aruba) is not reliable enough, we wanted to migrate to a more professional mail system. I, the supposed IT manager, just proposed to migrate to Zoho mail o something like that, but a colleague of mine, supposedly not the IT manager, came with the bright idea of using Google Workspaces. Since this service is not cheap he proposes to migrate just the 5/6 more important mailboxes to gMail, and for the other set up a secondary mail domain on our actual provider, then generate a bunch of single address mailing lists to forward the remaining mailboxes to the secondary domain. It doesn't sound like a smart move to me: seems like an hell to mantain and might (will) generate confusion in the recipients that will get replies from a different mail address.
What's the internet opinion about this?