-
docker-mailserver
Discontinued A fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) using Docker. [Moved to: https://github.com/docker-mailserver/docker-mailserver] (by tomav)
-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Privately I use https://github.com/tomav/docker-mailserver and an external Roundcube instance, which is ideal if you have only a few mailboxes. For updating, a docker-compose pull and a docker-compose up -d are all you need. They also offer a script that makes administration much easier. It can be used to manage mailboxes and aliases as well as things like DKIM. If you have a larger number of users, Mailcow is also a good option, but it is also much more complex and resource hungry.