Copy the following to get exmh to work:
/usr/bin:
exmh*
exmh-bg*
exmh-async*
inc*
viamail*
sortm*
show*
sendfiles*
send*
scan*
rmm*
rmf*
repl*
refile*
prompter*
prev*
pick*
packf*
next*
msh*
msgchk*
mimencode*
mhstore*
mhshow*
mhpath*
mhparam*
mhn*
mhlist*
mhbuild*
mark*
forw*
folders*
folder*
flists*
flist*
dist*
comp*
burst*
anno*
ali*
whom*
whatnow*
/usr/lib/nmh:
ap*
conflict*
dp*
fmtdump*
install-mh*
mhl*
mhtest*
post*
rcvdist*
rcvpack*
rcvstore*
rcvtty*
slocal*
spost*
Tkpostage needs the tkpostage file and /usr/local/lib/TkPostage.xbm
Also put /usr/local/lib/exmh-2.7.2 there.