I've been using Thunderbird for over a year now (oh, how I miss Eudora!) and the one continual irritation I have is that if I reply to an email from my inbox (usual), it sends a copy to my inbox. When I send an original message, I have a copy saved to my sent folder on my email provider (Protonmail). I'd like copies of replies saved to the same place. I do NOT want them in my inbox, and the "Place replies in the folder of the message being replied to" box is unchecked. Just as an aside, occasionally I'll want to see on my phone emails that I've sent from my computer. Of course, I don't have access to Thunderbird from my phone (and pretty sure I don't want it there either). How do I fix this?