Which things? Interested to know, because I too like both Red and FPC (I use FPC to make it easier to distinguish Free Pascal (Compiler) from FP for Functional Programming).
Interesting. Did you manage to solve that? I had tried out a good number of Rebol features earlier, including some Internet ones [1], but do not remember if I tried email and if it worked or not.
[1] Pretty cool that you can do many Internet operations in one or a few lines of code, and also I like the functional / Lisp-y aspects of Rebol (and hence Red), and the minimal syntax.