Kolab Now vs docker-mailserver
In short: Kolab Now wins on privacy, Kolab Now wins on price, and Kolab Now wins on features. The full comparison is below, last checked 25 October 2026.
Which should you choose?
- Kolab Now is the better pick if you want your mail kept in Switzerland and a calendar and contacts alongside your mail.
- Go for docker-mailserver if you'd like a free plan to start on.
| Feature | Kolab Now | docker-mailserver |
|---|---|---|
| Overall | 3.5 | Not rated |
| Privacy | 3.0 | Not rated |
| Price | 3.0 | Not rated |
| Features | 4.5 | Not rated |
| Cheapest plan | Mailbox CHF 5 a month | Open source Free |
| Free plan | No | Yes, open source |
| Storage | 5 GB | Not confirmed |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | Switzerland | Not confirmed |
| Your data is kept in | Switzerland | Your own server |
| Founded | 2013 | Unknown |
| Free trial | Unknown | Free to download |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | No |
| Aliases | Yes | Yes |
| Open-source apps | ✓ Yes | ✓ Yes |
| Sign up without ID | No | No |
| White label | Unknown | Unknown |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
How Kolab Now and docker-mailserver differ
- Cheapest plans: Kolab Now Mailbox, CHF 5 a month. docker-mailserver Open source, Free.
- Kolab Now has no free plan; docker-mailserver has a free plan (open source).
- Space: Kolab Now gives 5 GB of storage, docker-mailserver storage not confirmed.
- Kolab Now keeps your mail in Switzerland, while docker-mailserver keeps it in Your own server.
- The companies sit under different laws: Kolab Now in Switzerland, docker-mailserver in Not confirmed.
Kolab Now and docker-mailserver: your questions
Can I use my own domain with Kolab Now or docker-mailserver?
Yes, both do. Kolab Now: Yes. docker-mailserver: Yes.
Where is my email stored with Kolab Now and docker-mailserver?
Kolab Now keeps it in Switzerland. docker-mailserver keeps it in Your own server.
Prices and the latest news
I haven't seen either change its price since I started checking on 25 October 2026.
The latest headlines: Kolab Now news · docker-mailserver news.
Not sold on either? Try these
Kolab Now vs mailbox.org · docker-mailserver vs mailbox.org · Kolab Now vs Posteo · docker-mailserver vs Posteo · Kolab Now vs Proton Mail · docker-mailserver vs Proton Mail
How to switch
Moving between any two providers works the same way. Pick your two providers for the steps.