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Last pushed: a year ago
Short Description
No frills SMTP server with relay and smart server support.
Full Description

Docker-SMTP

This is a SMTP docker container for sending emails. You can also relay emails to gmail and amazon SES.

Environment variables

The container accepts RELAY_NETWORKS environment variable which MUST start with : e.g :192.168.0.0/24 or :192.168.0.0/24:10.0.0.0/16.
The container accepts KEY_PATH and CERTIFICATE_PATH environment variable that if provided will enable TLS support. The paths must be to the key and certificate file on a exposed volume. The keys will be copied into the container location.
The container accepts MAILNAME environment variable which will set the outgoing mail hostname
The container also accepts the PORT environment variable, to set the port the mail daemon will listen on inside the container. The default port is 25.

Below are scenarios for using this container

As SMTP Server

You don't need to specify any environment variable to get this up.

As a Secondary SMTP Server

Specify 'RELAY_DOMAINS' to setup what domains should be accepted to forward to lower distance MX server.

Format is <domain1> : <domain2> : <domain3> etc

As Gmail Relay

You need to set the GMAIL_USER and GMAIL_PASSWORD to be able to use it.

As Amazon SES Relay

You need to set the SES_USER and SES_PASSWORD to be able to use it.<br/>
You can override the SES region by setting SES_REGION as well.

As generic SMTP Relay

You can also use any generic SMTP server with authentication as smarthost.
You need to set SMARTHOST_ADDRESS, SMARTHOST_PORT (connection parameters), SMARTHOST_USER, SMARTHOST_PASSWORD (authentication parameters), and SMARTHOST_ALIASES: this is a list of aliases to puth auth data for authentication, semicolon separated.
Example:

  • SMARTHOST_ADDRESS=mail.mysmtp.com
  • SMARTHOST_PORT=587
  • SMARTHOST_USER=myuser
  • SMARTHOST_PASSWORD=secret
  • SMARTHOST_ALIASES=*.mysmtp.com
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agaveapi
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