Please consider a support contract for a small monthly fee at [Servercow EN](https://www.servercow.de/mailcow?lang=en#support) to support further development. _We_ support _you_ while _you_ support _us_. :)
If you are super awesome and would like to support without a contract, you can get a SAL license that confirms your awesomeness (a flexible one-time payment) at [Servercow EN](https://www.servercow.de/mailcow?lang=en#sal).
For professional and prioritized commercial support you can sign a basic support subscription at [Servercow EN](https://www.servercow.de/mailcow?lang=en#support). For custom inquiries or questions please contact us at [info@servercow.de](mailto:info@servercow.de) instead.
Furthermore we do also provide a fully featured and managed mailcow [here](https://www.servercow.de/mailcow#managed). This way we take care about the technical magic underneath and you can enjoy your whole mail experience in a hassle-free way.
### Community support and chat
The other alternative is our free community-support on our various channels below. Please notice, that this support is driven by our awesome community around mailcow. This kind of support is best-effort, voluntary and there is no guarantee for anything.
- Our mailcow community @ [community.mailcow.email](https://community.mailcow.email)
Since September 2022 we´re providing two seperate Demo instances:
+ **[demo.mailcow.email](https://demo.mailcow.email)** is the classic Demo based on the **stable releases**.
+ **[nightly-demo.mailcow.email](https://nightly-demo.mailcow.email)** is the new **nightly demo** based on unreleased testing features. (So especially interesting for those who have no possibility to create a test instance themselves.)
Use the following credentials to login on both demos:
The integrated **mailcow UI** allows administrative work on your mail server instance as well as separated domain administrator and mailbox user access:
- [DKIM](http://dkim.org) and [ARC](http://arc-spec.org/) support
- Black- and whitelists per domain and per user
- Spam score management per-user (reject spam, mark spam, greylist)
- Allow mailbox users to create temporary spam aliases
- Prepend mail tags to subject or move mail to sub folder (per-user)
- Allow mailbox users to toggle incoming and outgoing TLS enforcement
- Allow users to reset SOGo ActiveSync device caches
- imapsync to migrate or pull remote mailboxes regularly
- TFA: Yubikey OTP and U2F USB (Google Chrome and derivatives only), TOTP
- Add domains, mailboxes, aliases, domain aliases and SOGo resources
- Add whitelisted hosts to forward mail to mailcow
- Fail2ban-like integration
- Quarantine system
- Antivirus scanning incl. macro scanning in office documents
- Integrated basic monitoring
- A lot more...
mailcow: dockerized comes with multiple containers linked in one bridged network.
Each container represents a single application.
- [ACME](https://letsencrypt.org/)
- [ClamAV](https://www.clamav.net/) (optional)
- [Dovecot](https://www.dovecot.org/)
- [MariaDB](https://mariadb.org/)
- [Memcached](https://www.memcached.org/)
- [Netfilter](https://www.netfilter.org/) (Fail2ban-like integration by [@mkuron](https://github.com/mkuron))
- [Nginx](https://nginx.org/)
- [Oletools](https://github.com/decalage2/oletools) via [Olefy](https://github.com/HeinleinSupport/olefy)
