Best way to back up your iMail (and one other question)

Hello fellow MPUs!

My two question dealing iMail e-mails are thus:

  1. What is the best way you back up your e-mail?

  2. How do you merge backup(s) with other mailboxes?

TIA!

Michael

One of EagleFiler’s features is importing and archiving mail, converting Apple Mail and Outlook emails to the standard mbox format. (Gmail can also export to mbox.)

https://c-command.com/eaglefiler/help/importing-mail

EDIT:

Eaglefiler’s forum is here.

There’s a recent forum discussion and walkthrough here between the developer and a user with a 65Gb(!) mbox file with over 1 million emails that was imported to Eaglefiler (I think it took 7 hours to import and index)