Upgrade version mailrelay 2.4

Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine:3.16 as builder
 
-ARG DOWNLOAD_URL=https://downloads.sourceforge.net/project/emailrelay/emailrelay/2.3/emailrelay-2.3-src.tar.gz
+ARG DOWNLOAD_URL=https://downloads.sourceforge.net/project/emailrelay/emailrelay/2.4/emailrelay-2.4-src.tar.gz
 
 RUN apk add --no-cache curl g++ make autoconf automake openssl-dev \
     && mkdir -p /tmp/build && cd /tmp/build \

README.md

@@ -1,39 +1,45 @@
 # Docker image for E-MailRelay
+
 ![MicroBadger Size](https://img.shields.io/microbadger/image-size/dcagatay/emailrelay)
 ![MicroBadger Layers](https://img.shields.io/microbadger/layers/dcagatay/emailrelay)
 ![Docker Pulls](https://img.shields.io/docker/pulls/dcagatay/emailrelay)
 ![Docker Stars](https://img.shields.io/docker/stars/dcagatay/emailrelay)
 
 Available Tags:
+
 - [latest](https://github.com/dogukancagatay/docker-emailrelay/blob/master/Dockerfile)
+- [2.4](https://github.com/dogukancagatay/docker-emailrelay/blob/2.4/Dockerfile)
 - [2.3](https://github.com/dogukancagatay/docker-emailrelay/blob/2.3/Dockerfile)
 - [2.2](https://github.com/dogukancagatay/docker-emailrelay/blob/2.2/Dockerfile)
 - [2.1](https://github.com/dogukancagatay/docker-emailrelay/blob/2.1/Dockerfile)
 - [2.0.1](https://github.com/dogukancagatay/docker-emailrelay/blob/2.0.1/Dockerfile)
 
 Alpine based Docker image for E-MailRelay. You can read capabilities, configuration etc. of E-MailRelay on its [website](http://emailrelay.sourceforge.net).
 
-Container configuration is done via *environment variables* and *command line arguments*. Command line arguments are given directly to ``emailrelay`` executable.
+Container configuration is done via _environment variables_ and _command line arguments_. Command line arguments are given directly to `emailrelay` executable.
 
-To see all command line options of ``emailrelay`` command:
+To see all command line options of `emailrelay` command:
 
 ```bash
 docker run --rm dcagatay/emailrelay --help --verbose
 ```
 
 ## Usage
-Some usage examples are given in ``docker-compose.yml``.
+
+Some usage examples are given in `docker-compose.yml`.
 
 #### Example Usage with for Gmail SMTP Service
+
 Sample configuration for sending emails from your Gmail account.
 
-Add your credentials to ``client-auth.txt``.
+Add your credentials to `client-auth.txt`.
 
 ```
 client plain [email protected] gmail-or-app-password
 ```
 
 Run the docker container
+
 ```bash
 docker run --rm \
 -p "25:25" \
@@ -43,37 +49,46 @@ dcagatay/emailrelay --forward-on-disconnect --forward-to smtp.gmail.com:587 --cl
 
 ## Environment Variables
 
-#### ``DEFAULT_OPTS``
-By default the following arguments are given on runtime. You can overwrite ``DEFAULT_OPTS`` environment variable to change or disable this behaviour.
+#### `DEFAULT_OPTS`
+
+By default the following arguments are given on runtime. You can overwrite `DEFAULT_OPTS` environment variable to change or disable this behaviour.
+
 ```
 --no-daemon --no-syslog --log --log-time --remote-clients
 ```
 
-#### ``PORT``
-The port that E-MailRelay runs on. Default value is ``25``. If you did TLS configuration you need to set this variable to ``587`` or something else.
+#### `PORT`
 
-#### ``SPOOL_DIR``
-Spool directory for E-MailRelay. No need to change. Default value: ``/var/spool/emailrelay``
+The port that E-MailRelay runs on. Default value is `25`. If you did TLS configuration you need to set this variable to `587` or something else.
 
-#### ``SWAKS_OPTS``
-This variable is used to give options to _swaks_, it is used on built-in health-check functionality. If you serve with TLS configuration you need to set this variable to ``-tls``. Default value: _empty-string_
+#### `SPOOL_DIR`
+
+Spool directory for E-MailRelay. No need to change. Default value: `/var/spool/emailrelay`
+
+#### `SWAKS_OPTS`
+
+This variable is used to give options to _swaks_, it is used on built-in health-check functionality. If you serve with TLS configuration you need to set this variable to `-tls`. Default value: _empty-string_
 
 ## Filter Scripts, Client/Server Authentication, and Others
-Inside ``config`` directory you will find sample files for usage with filter functionality, SMTP client authentication and relay server authentication.
+
+Inside `config` directory you will find sample files for usage with filter functionality, SMTP client authentication and relay server authentication.
 
 For any further configuration or details, refer to the [E-MailRelay documentation](http://emailrelay.sourceforge.net).
 
 ## Testing
+
 You can test your configuration with _swaks_.
+
 ```bash
 docker run --rm \
   flowman/swaks \
   echo "This is a test message." | swaks --to [email protected] --from [email protected] --server localhost --port 25
 ```
 
-## Additions to ``drdaeman/docker-emailrelay``
+## Additions to `drdaeman/docker-emailrelay`
+
 - E-MailRelay version upgrade.
 - Multi stage build for quicker builds.
-- ``bash`` shell in included for further scripting.
+- `bash` shell in included for further scripting.
 - Default TLS configuration is changed to insecure configuration.
 - Sample files for advanced configuration.