我的PHP脚本无法向Mailhog客户端发送消息。我使用的是Slim PHP框架。以下是我尝试的方法：-
容器已启动并运行，并设置了sendmail路径：
x1c 0d1x的数据

docker exec -it php cat /usr/local/etc/php/conf.d/local.ini
error_reporting=E_ALL
sendmail_path="mhsendmail --smtp-addr=mailhog:1025"

字符串
本地安装的Sendmail sudo apt-get install sendmail

docker-compose.yaml

version: '3'
services:
  #PHP Service
  php:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: php
    restart: unless-stopped
    tty: true
    environment:
      SERVICE_NAME: php
      SERVICE_TAGS: dev
    working_dir: /var/www
    volumes:
      - ./:/var/www
      - ./docker/php/local.ini:/usr/local/etc/php/conf.d/local.ini
    networks:
      - app-network
  #Mailhog
  mailhog:
    container_name: mailhog
    image: mailhog/mailhog
    ports:
      - "1025:1025"
      - "8025:8025"
    networks:
      - app-network

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Dockerfile

FROM php:8.1-fpm
# Copy composer.lock and composer.json
# COPY composer.lock composer.json /var/www/
# Set working directory
WORKDIR /var/www
# Install dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libpng-dev \
    libjpeg62-turbo-dev \
    libfreetype6-dev \
    locales \
    libzip-dev \
    zip \
    jpegoptim optipng pngquant gifsicle \
    vim \
    unzip \
    git \
    curl
# Clear cache
RUN apt-get clean && rm -rf /var/lib/apt/lists/*
# Install extensions
RUN docker-php-ext-install mysqli pdo pdo_mysql && docker-php-ext-enable pdo_mysql
RUN docker-php-ext-configure gd --with-freetype --with-jpeg
RUN docker-php-ext-install gd
# Install composer
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
RUN groupadd -g 1000 www
RUN useradd -u 1000 -ms /bin/bash -g www www
# Copy existing application directory contents
COPY . /var/www
# Copy existing application directory permissions
COPY --chown=www:www . /var/www
# Change current user to www
USER www
# Expose port 9000 and start php-fpm server
EXPOSE 9000
CMD ["php-fpm"]

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在我的PHP脚本中：

$to = '[email protected]';
    $subject = 'Hello from Ubuntu!';
    $message = 'This is a Mailhog test';
    $headers = "From: [email protected]\r\n";
    if (mail($to, $subject, $message, $headers)) {
        echo "SUCCESS";
    } else {
        echo "ERROR";
    }

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在到达我的端点时，脚本返回ERROR？Any idea？