NMH IMAP GPG

Hi,

As far as I understand it, NMH can not be used directly with IMAP,so I
would like to use FDM for this.
If it is possible, I would appriciate any pointers on how to do this?

An other need for my MUA is the ability to use email encryption/signing
with GPG.
For now, I'm not sure how/if I can use GPG with NMH?

Any feedback on the above is welcome.

--
John Doe