# Overview

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mailcow dockerized comes with **11 containers** linked in **one bridged network**.

- Dovecot
- Memcached
- Redis
- MySQL
- Bind9 (Resolver) (formerly PDNS Recursor)
- PHP-FPM
- Postfix
- Nginx
- Rmilter
- Rspamd
- SOGo

**6 volumes** to keep dynamic data - take care of them!

- vmail-vol-1
- dkim-vol-1
- redis-vol-1
- mysql-vol-1
- rspamd-vol-1
- postfix-vol-1

The integrated **mailcow UI** allows administrative work on your mail server instance as well as separated domain administrator and mailbox user access:

- DKIM key management
- Black- and whitelists per domain and per user
- Spam score managment per-user (reject spam, mark spam, greylist)
- Allow mailbox users to create temporary spam aliases
- Prepend mail tags to subject or move mail to subfolder (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: Yubi OTP and U2F USB (Google Chrome and derivates only)
- Add domains, mailboxes, aliases, domain aliases and SOGo resources


*[Looking for a farm to host your cow?](https://www.servercow.de)*