I am not sure the title describes my problem properly, so let me explain.
I have a domain called example.com. I have currently set it up for email services from Microsoft Live domains. I have done this primarily because I need a very small number of email addresses ( email@example.com, firstname.lastname@example.org).
However, I would like to set up a type of catch-all service for my domain so that all emails get forwarded to my server. Here, I run certain rules that determine which of them get forwarded to my primary email but I digress.
What I require is that any email that does not belong in Microsoft Live Domains be forwarded to my server so that I can handle. The main problem I face is that Microsoft does not let me add other MX servers, even after its own server and requires that it be the ONLY MX record. I thought about just forwarding some emails but I would have to make a lot of changes to the rules and I'd rather not do that.
Any suggestions? Workarounds? I can go into a lot more detail if needed.
tl;dr - Want all emails forwarded to one of 2 mx servers on the fly.