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.
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Sign up to join this communityThis 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