Is it possible to auto-archive mails, after sending - or adding a separate "Send and archive" button?
I use the Inbox Zero approach, so now I need to manually archive conversations that have ended.
Ask Different is a question and answer site for power users of Apple hardware and software. It only takes a minute to sign up.Sign up to join this community
This is one of the many functions that are available in the Mail.app plugin Mailhub.
Here is a list of tools that help you archive your mails automatically. https://www.macupdate.com/apps/358562/mail-archiving
I use Mail Backup X