Hello Tony,
> If you distribute a table of users and their home servers to all of
> the mail servers, then this is easy. You can list any or all of the
> servers in the MX for your domain.
I see that the MX record has a number after it showing the priority - I assume I just add in a MX record for each mail server and use the same priority? I.e.:
MX 10 mail.server.1
MX 10 mail.server.2
MX 10 mail.server.3
and so on?