I've recently switched from Apple Mail to Thunderbird, and I'm realizing that one of the convenient little features that Apple Mail had that is missing in Thunderbird is that it would intelligently select which email account you are sending an email from depending on the currently viewed mailbox or who you've addressed it to. For example, let's say I have two email accounts: a personal Gmail address, and a work account with an address that looks something like myname@company.com, with the Gmail account being the default. If I start writing an email from my Gmail inbox or am addressing it to people whose addresses are totally unrelated from my work account, I'd like it to use the Gmail account, which is what it does. However, if I'm currently browsing one of the mailboxes for my work account, or I address a new email to one of my coworkers who also has an @company.com email address, I'd like it to automatically set the 'from' address of my new email to my work email. Thunderbird already picks the correct account when I'm replying. I'm hoping that it can also do so when starting a new email. Is there any way to do this?