I have an IMAP Gmail account which I have logged in through Apple Mail email client on my Mac book pro. I have sorted out some important emails and made a separate folder for those emails. Is it possible to backup only that email folder and not all the emails along with them? Thanks for your help.
Being it a unique request I had to search a lot for the solution of this query and I landed up on this blog: http://applemailbackupapp.blogspot.com/2016/08/apple-mail-backup-application.html
I hope this must be helpful. Thanks
In mail.app, you can select a folder and from the main menu choose ‘Mailbox > Export Mailbox’, select a location for the export file and click ‘choose’. Mail exports the mailbox as an .mbox package.
See also this page: https://support.apple.com/kb/PH19174?locale=en_US