How do I add dynamic MX records in the DNS template?

[RyanJ]

Recently we switched to RedCondor email filtering. The RedCondor MX records need to be:

<domain>.mx1.megagate.rcimx.net
<domain>.mx2.megagate.rcimx.net
<domain>.mx3.megagate.rcimx.net
<domain>.mx4.megagate.rcimx.net

But changing the template to using <domain> and anything else results in an error message. Any workarounds for this?

Thank you!