Horcrux lets you automatically backup your mails from any IMAP supported email accounts with great ease. The best part is, you have an option to restore the backed up emails to any other email account, retaining all your tags/folder hierarchy.

"Horcrux is handy since you don't actually have to think about it when it's running" - Lifehacker

Note: This is a background app, it resides on the Mac menu bar called "H". Click on that to get back to the preferences.

- Tested with iCloud, Gmail, Google Apps, Microsoft Exchange, GMX, DomainFactory. It should work on most email accounts.
- Incremental backups
- Automated backups at multiple locations (server and local) using the Hooks functionality.
- Supports multiple email accounts
- Add the accounts, set the backup frequency and it'll unobtrusively backup emails in the background
- Native Email Browsing interface where you can undelete specific emails (in case of user error)
- Independent IMAP Server to Server migration utility
- Clever restore process that'll skip already existing emails
- Tags / Folder names are retained during migration
- Stores emails in open format (.eml) which can be opened in clients like Apple Mail
- Can export emails in open format as .mbox
- The backups can be offline and moved around to different computers.

Please feel free to contact us in case of any problems

Note: Google, Microsoft, GMX, DomainFactory are trademarks of their respective owners.

What’s New

Version 4.1.25

- Optimize Memory and Disk Usage.

Ratings and Reviews

3.2 out of 5
13 Ratings

13 Ratings

JamiesonC ,

Much improved

With the update to Horcrux that was released on Sept. 9, I’ve had a successful backup every day. The developer claims to have reduced memory usage by 90%, and that seems to be true. My computer no longer crawls when a backup is happening. At this point, I would say that Horcrux works well and, if it doesn’t, the developer is open and responsive to feedback.

drp-anv ,

Great little application; very good support

I’ve used this application to backup IMAP, Exchange and Gmail accounts for several years.

It works very well, and allows easy access to the archives it creates.

When I have had problems, the developer has been very responsive - asking daily questions about my setup and suggesting ways to fix the problems I was having.

Different mailboxes have different problems, and several times the app has been updated to address crashes or hangups that I have experienced.

This is an awesome application, and the support is excellent.

Frendizi ,

Great email backup solution

The developer of this app is super responsive and actively releases updates to fix bugs. For the price if you're looking for a App Store solution to local email backup this is great!


Suhas Sharma
6.7 MB

OS X 10.9 or later, 64-bit processor


English, German

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.