On Sep 20, 2022, at 8:18 AM, Tom R <n...@trodman.com> wrote: > > I would be ok with symlinks or hardlinks; but symlinks are better since I > could > quickly find which folder the msg first landed in.
You can use a sequence to keep track of which folder a message came from. Then you just have to run a function like msg2seq() { grep "\<$1\>" .mh_sequences|sed 's/:.*//'} to reverse map a msg to the sequence(s) it is part of. One benefit is MH will maintain them properly as you rmm, sortm old messages etc.