我无法在Laradock环境中发送电子邮件

Question

因此，我在PHP项目开发环境中使用Laradock。将电子邮件发送到mailtrap时出现问题，并且出现此错误：

sh: 1: /usr/sbin/sendmail: not found

该如何解决？ 或者在Laradock中，除了最佳实践和方法以外，还有没有其他测试方法？

我已经尝试在php-fpm dockerfile apt-get install -y sendmail && \中安装sendmail，然后重新构建容器，似乎日志中已经安装了sendmail，然后重新启动容器，它仍然有相同的错误：

sh: 1: /usr/sbin/sendmail: not found

我的php-fpm / Dockerfile

...

# always run apt update when start and after add new source list, then clean up at end.
RUN set -xe; \
    apt-get install -y sendmail && \
    apt-get update -yqq && \
    pecl channel-update pecl.php.net && \
    apt-get install -yqq \
      apt-utils \
      #
      #--------------------------------------------------------------------------
      # Mandatory Software's Installation
      #--------------------------------------------------------------------------
      #
      # Mandatory Software's such as ("mcrypt", "pdo_mysql", "libssl-dev", ....)
      # are installed on the base image 'laradock/php-fpm' image. If you want
      # to add more Software's or remove existing one, you need to edit the
      # base image (https://github.com/Laradock/php-fpm).
      #
      # next lines are here becase there is no auto build on dockerhub see https://github.com/laradock/laradock/pull/1903#issuecomment-463142846
      libzip-dev zip unzip && \
      docker-php-ext-configure zip --with-libzip && \
      # Install the zip extension
      docker-php-ext-install zip && \


      php -m | grep -q 'zip'

...

我希望邮件发送到我的邮箱，使用Wampserver一次成功