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mailcow
Willich, Germany
Plans and prices
mailcow: dockerized
Open-source groupware and email suite; self-hosted with Docker
Read 11 Oct 2026 · docs.mailcow.email
shared mailcow
1 domain · 20 mailboxes · up to 50 GB · unlimited aliases and domain aliases
Read 11 Oct 2026 · servercow.de
Ticket Support (Level 1)
3 tickets per quarter · no phone or remote support · max. 1 day response time
Read 11 Oct 2026 · servercow.de
managed mailcow
Unlimited domains and mailboxes, subject to system resources · up to 500 GB · dedicated server · up to 35 ActiveSync devices included
Read 11 Oct 2026 · servercow.de
Telefon Support (Level 2)
3 tickets per quarter · 30 minutes phone support per quarter · no remote support · max. 6 hours response time
Read 11 Oct 2026 · servercow.de
Remote Support (Level 3)
5 tickets per quarter · 30 minutes phone or remote support per quarter · max. 4 hours response time
Read 11 Oct 2026 · servercow.de
Notfall Support (Level 4)
120 minutes phone support · 120 minutes remote support · max. 2 hours response time
Read 11 Oct 2026 · servercow.de
On the record
- Administration
- The mailcow web interface lets administrators create domains and email addresses and manage most settings.docs.mailcow.email · read 11 Oct 2026
- Audience
- Servercow describes shared mailcow as suited to private users or small businesses with low email volume.servercow.de · read 11 Oct 2026
- Community integrations
- The docs list community-managed integrations including Nextcloud, Mailman 3, Portainer, Roundcube, CheckMK, and a Prometheus exporter.docs.mailcow.email · read 11 Oct 2026
- Data storage
- Mail is compressed and encrypted, and the encryption key pair is stored in the crypt-vol-1 Docker volume, which the documentation says to back up.docs.mailcow.email · read 11 Oct 2026
- Email transport security
- mailcow supports managing MTA-STS policies through its UI and documents DANE/TLSA support in its Postfix TLS policy component.docs.mailcow.email · read 11 Oct 2026
- Integrations
- The documentation lists client setup guides for Android, Apple macOS/iOS, eM Client, KDE Kontact, Outlook, and Thunderbird.docs.mailcow.email · read 11 Oct 2026
- Mail authentication
- The UI supports generating DKIM and ARC, managing per-domain and per-user blacklists and whitelists, and setting spam scores.docs.mailcow.email · read 11 Oct 2026
- Mail services
- Its components include Postfix for mail transfer, Dovecot for IMAP/POP, and SOGo for webmail, calendars, and contacts.docs.mailcow.email · read 11 Oct 2026
- Platform limits
- The documentation says not to install on NAS devices such as Synology or QNAP, OpenVZ, LXC, or other container platforms.docs.mailcow.email · read 11 Oct 2026
- Product
- mailcow: dockerized is an open-source groupware and email suite based on Docker.docs.mailcow.email · read 11 Oct 2026
- Requirements
- The documented minimum is 1 GHz CPU, 6 GiB RAM plus 1 GiB swap, and 20 GiB disk excluding email storage; x86_64 and ARM64 are listed architectures.docs.mailcow.email · read 11 Oct 2026
- Security
- Two-factor authentication options include YubiKey OTP, WebAuthn, and TOTP.docs.mailcow.email · read 11 Oct 2026
- Spam and malware
- The suite includes Rspamd spam filtering and supports optional ClamAV antivirus scanning, including Office document macro scanning.docs.mailcow.email · read 11 Oct 2026
- Support
- Commercial support is available through Servercow, while community support is voluntary, best-effort, and not guaranteed.docs.mailcow.email · read 11 Oct 2026
