Copyright © 1999–2017 FastMail Pty Ltd
We've just added mailservice.ms to our list of domains - this was the address of another provider some time ago, but the domain became free so we picked it up. We don't have any affiliation with the previous owners.
Many thanks to Peter for noticing that the domain was available.
You can use this domain right now for aliases, new accounts, and changing your home domain.