Circle of update is a spiral

New

• Added a sponsoring button to the repository, as some nice people
  want to show their appreciation this way.
• Added GitHub Action to automatically deploy new releases to Docker Hub.

Changed

• Update to newest version of Wildduck, ZoneMTA, Haraka and Wildduck's
  Haraka-Plugin. Configuration has changed, make sure to update configuration
  files accordingly.
• Update node to v14 as Wildduck makes use of optional chaining now.

Wild water flowing in circles

Changed

• Update software version of wildduck and wildduck's haraka-plugin.

Luckily missed is missed too

Fixed

• Fix misspelled git URL of Wildduck in the Dockerfile. Kudos to @someleshik for catching the error.

A wink a day keeps the errors awa...hidden

Changed

• Update software version of wildduck and haraka.

Too Much Light Revealed The Trick

Fixed

• Fix error that causes an invalid configuration key to be modified in
  order to endable or disable ENABLE_SMTP_SEND_LATER.

Mercury Never Stops To Shine

New

• Add ENABLE_SMTP_SEND_LATER environment variable that allows enabling
  or disabling the send later feature for messages with a future date
  in the 'Date' header. If enabled, messages with a future date will be
  send on that specified date in the future. The specified date may be
  up to one year in the future and must be at least five minutes in the
  future to be enqued. If the send later feature is disabled, all
  messages will be send out immediately.

Changed

• Update software versions of complete mail server.
• All IMAP and SMTP plugins link to the checked out instance of wildduck
  instead of to the npm version. If you want to use your own wildduck
  instance, all plugins will do so too.

Late Night Giggles Strike Again

Changed

• Update software versions of complete mail server.

Fixed

• Fix error that would cause the API to still use SSL if TLS keys were
  given, even if API_USE_HTTPS was set to false.
• Fix error that would prevent the generation of new DKIM keys.

Fourious Keyboard Key Stopped

Fixed

• Fix an error that would cause the configuration files to be inside a
  subfolder and hence hidden from the services.

Misplugged Memory Unplugged

New

• Add USE_OWN_SETTINGS environment variables to enable users to prevent
  the container to overwrite any value in any service configuration file.

Changed

• The container will now write the environment variables into the the
  different service configuration files on every start up.
  If you provide your own configuraton files, use the new
  USE_OWN_SETTINGS environment variable, to prevent that.

Fixed

• Fixed error that would cause some of the user-set environment
  variables to be reset to their default value because of an 'invalid'
  value.
• Set the default value of the API_USE_HTTPS environment variable to
  true as stated in the README.

Radio Rattle Solved

New

• The docker container contains a fully fledged email system based on
  modern technology.
• System is configurable using environment variables and API.
• Add a cute logo for the project (Huge thanks to the noun project at
  this place).
• License the project under the european union public license. See
  LICENSE for more information on that.
• Describe all possible environment variables in the
  README.md file.