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Lately it has occasionally happened that I had to move the e-mail accounts for customers when changing hosting. The whole procedure can actually be solved "by hand" with Apple Mail by calling up the mails, saving them locally, setting up the new IMAP account and pushing the mails back into the local folder. If you only have a few folders, the whole thing is not that complex and in some cases my instructions may also help to create a Backup of the mails from Apple Mail close. However, it quickly becomes a task that can take hours if you try to keep an existing folder structure.
If you want to bypass the manual way of backing up the email data, you can use the software "Horcruxes"which runs under macOS or OS X. Some of you may know the term" Horcrux "from Harry Potter, but the software has little in common with black magic, because it only provides good service. :)
In addition to a "simple" backup of a complete IMAP account, the software can also create so-called snapshots that represent a backup at a specific point in time.
That sounds like a normal backup at first, but if you set the snapshot function in the backup to "daily", for example, you can later restore your e-mail account to any day. This does not use a lot of memory unnecessarily, because the software does not back up the entire IMAP box every day, only the changes. An incremental backup, so to speak. ;-)
This function is also very helpful, because if you change your mail provider or your hosting, you often have the problem that you don't get mail so easily from one account to the other. This is a complex undertaking, especially if you want to use the folder structure that has been created.
Horcrux helps here too. The "Restore" function has a sub-function that is used specifically for migrating an IMAP e-mail account to another provider. This alone is worth the purchase price of the program to me, because previously I had always used an online service for this move for customers, which cost 10-15 EUR per move. With Horcrux you only pay once for the program and you can then move as many accounts as you want. And, of course, regularly backup your own account.
Some users want to save their emails in mbox format. Horcrux does this without further ado. The corresponding function can also be found in the "Restore" tab.
If you want to buy the program, you can find it for just under 15 EUR in Mac App Store. A 30-day trial version can be used here on the developer's website load. Measured against the functions and the work that can be saved with Horcrux, the little helper is ingenious. I didn't hesitate and bought it right away. However, it will take a night to secure my 15 GB IMAP account at me.com. But since I do a lot of things by email, a backup with easy restoration is important to me - and that's exactly what Horcrux offers.
Unfortunately, I couldn't get Horcrux to work with my iCloud account or with my .me.com email address. The developer soon sent me ten emails and wanted to help me, but nothing seems to be done in my case. But he gave me a hint that might help others: You should register for the login Whatsapp-Set up a specific password in the administration of the Apple account and then use this for Horcrux. You can find out how to set up these app-specific passwords at this Apple help page. The developer said it would work for him without any problems. Unfortunately not with me ... :-( But maybe you have better luck!
Jens has been running the blog since 2012. He appears as Sir Apfelot for his readers and helps them with problems of a technical nature. In his free time he drives electric unicycles, takes photos (preferably with his iPhone, of course), climbs around in the Hessian mountains or hikes with the family. His articles deal with Apple products, news from the world of drones or solutions for current bugs.