Restic Mailer vs Rustic
A side-by-side comparison of two self-hosted backup & recovery options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Restic Mailer | Rustic |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 76 · Good | 88 · Excellent |
| Category | Backup & Recovery | Backup & Recovery |
| License | MIT | Apache-2.0 |
| Language | Shell | Rust |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 128 MB |
| Deployment | docker, bare-metal | binary |
| GitHub stars | ★ 663 | ★ 3,273 |
| First released | 2018 | 2022 |
| Replaces | Backblaze | Backblaze, CrashPlan |
What are Restic Mailer and Rustic?
Restic Mailer
A wrapper around restic that runs backups on schedule and emails detailed success or failure reports. It adds visibility to unattended restic deployments.
- Scheduled restic runs
- Email job reports
- systemd integration
- Unattended backups
Rustic
Rustic is a backup tool written in Rust that creates fast, encrypted, and deduplicated backups. It is fully compatible with Restic repositories while offering lower memory usage.
- Restic-compatible repositories
- Low memory footprint
- Cold storage support
Restic Mailer vs Rustic: key differences
Restic Mailer is written in Shell, while Rustic is built with Rust. Licensing differs — MIT for Restic Mailer versus Apache-2.0 for Rustic. Restic Mailer is the lighter option, starting around 64 MB of RAM against 128 MB for Rustic. Restic Mailer is the more established project (first released 2018), while Rustic arrived in 2022. Rustic has the considerably larger community, at 3,273 GitHub stars versus 663. Restic Mailer lists first-class Docker deployment; Rustic does not.
Why pick each one
Choose Restic Mailer if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Written in Shell
Choose Rustic if…
- Released under the Apache-2.0 license
- Active community (3.3k GitHub stars)
- Written in Rust
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is Restic Mailer or Rustic better?
Neither is universally better. Rustic has the larger community, while Restic Mailer is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Restic Mailer and Rustic free and open-source?
Yes. Restic Mailer is licensed under MIT and Rustic under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Restic Mailer and Rustic with Docker?
Restic Mailer: yes. Rustic: check the project docs for container support.
Which is lighter on resources, Restic Mailer or Rustic?
Restic Mailer has the smaller minimum footprint at 64 MB of RAM, compared to about 128 MB for Rustic. Real-world usage depends on library size, user count, and enabled features.