Forward wildcard subdomain to same subdomain on different domain
Solution 1:
A DNAME record may suffice for this redirect, though I don't know how it will handle sub-sub domains (your maybe.ifimlucky
example). On the other hand, DNAME records can be very surprising, so ideally would need to be extensively documented (that is, edits to a zone with a DNAME record in it will show a serial change, but still forward elsewhere, so if folks don't know that's going on...)