发送网格批量电子邮件 php - Sendgrid batch emails php

Sendgrid batch emails php

本文关键字：电子邮件 php 网格 | 更新日期: 2023-09-27

我正在尝试将Sendgrid SMTP API（4.0）与Swiftmailer（5.4）一起使用，向已导入新站点的用户发送大量密码重置链接。

下面的代码有效，但每个收件人都可以看到完整列表的电子邮件，因为它们都在"收件人："字段中。如何使用模板和替换一次发送多封电子邮件，而每个收件人都看不到所有电子邮件地址。密件抄送筛选器似乎只接收一封电子邮件。

<?php
$links = array('reset link 1', 'reset link 2');
$emails = array( 'example1@gmail.com', 'example2@gmail.com' );
$transport = 'Swift_SmtpTransport::newInstance( 'smtp.sendgrid.net', 587 );
$transport->setUsername( 'username' );
$transport->setPassword( 'password' );
$mailer = 'Swift_Mailer::newInstance( $transport );
$message = new 'Swift_Message();
$response = $mailer->send( $message );
$message->setTo( $emails );
$message->setFrom( 'info@newwebsite.ie' );
$message->setBody( 'body content' );
$header = new Smtpapi'Header();
$header->addSubstitution( '%name%', $names );
$header->addSubstitution( '%source%', $sources );
$header->addSubstitution( '%link%', $links );
$filter = array(
  'templates' => array(
    'settings'  => array(
      'enable'          => 1,
      'template_id' => 'cc813g53-template-id'
    )
  )
);
$header->setFilters( $filter );
$message_headers = $message->getHeaders();
$message_headers->addTextHeader( HEADER::NAME,   $header->jsonString(JSON_UNESCAPED_UNICODE) );
try {
    $response = $mailer->send( $message );
    print_r( $response ); //2 emails sent
} catch('Swift_TransportException $e) {
    print_r('Bad username / password');
}
?>

为了防止收件人看到完整的电子邮件列表，您可以像这样循环每封邮件（未经测试的代码）：

<?php
$emails = array( 'example1@gmail.com', 'example2@gmail.com' );
$transport = 'Swift_SmtpTransport::newInstance( 'smtp.sendgrid.net', 587 );
$transport->setUsername( 'username' );
$transport->setPassword( 'password' );
// You may need to move the mailer inside the foreach loop (untested).
$mailer = 'Swift_Mailer::newInstance( $transport );
foreach ($emails as $email) {
    $links = array('reset link 1', 'reset link 2');
    $message = new 'Swift_Message();
    $response = $mailer->send( $message );
    $message->setTo( $email );
    $message->setFrom( 'info@newwebsite.ie' );
    $message->setBody( 'body content' );
    $header = new Smtpapi'Header();
    $header->addSubstitution( '%name%', $names );
    $header->addSubstitution( '%source%', $sources );
    $header->addSubstitution( '%link%', $links );
    $filter = array(
      'templates' => array(
        'settings'  => array(
          'enable'          => 1,
          'template_id' => 'cc813g53-template-id'
        )
      )
    );
    $header->setFilters( $filter );
    $message_headers = $message->getHeaders();
    $message_headers->addTextHeader( HEADER::NAME,   $header->jsonString(JSON_UNESCAPED_UNICODE) );
    try {
        $response = $mailer->send( $message );
        print_r( $response ); //2 emails sent
    } catch('Swift_TransportException $e) {
        print_r('Bad username / password');
    }
}
?>