Yes. I knew hot seat works and I was assuming MP will work as well - that is until I got a warning that it may not work, hence this thread. Anyway tests confirm that submitting multiple turns from same machine works.
What I'm not sure about is whether the following will work.
1. Start playing turn on machine A.
2. Continue play turn on machine B (say its weekend, you're at your parents and you installed your dominions there as well, no copy violation since parents don't play dom
)
3. Complete playing turn on machine A and submit/email.
I assume it will work based on the assumption that every time the turn is saved to the .2h file the current key is saved as well.