Support » Plugin: Mailgun for WordPress » Batch mail, all recipients visible in “to” field

  • I am unable to get batch emails to iterate through all recipients. I get all emails in the to: field. Visible to all recipients.

    Have tried these approaches:
    In functions.php added: add_filter( ‘wp_mail’, ‘mg_mutate_to_rcpt_vars’ );
    and set $to_emails as an array like this:
    wp_mail($to_emails, $subject, $content, $headers, $attachments);

    $rcpt_vars = array();
    $idx = 0;
    foreach ($to_emails as $user_addr) {
    $rcpt_vars[$user_addr] = array(“batch_msg_id” => $idx);
    $rcpt_vars_json = json_encode($rcpt_vars);
    $headers = array(
    “Content-Type: text/html, charset=UTF-8”,
    “X-Mailgun-Variables: ${rcpt_vars_json}”
    $content = $content.’%recipient.batch_msg_id%’;
    wp_mail($to_emails, $subject, $content, $headers, $attachments);
    None of these works.

    I ended up with a foreach loop. Not optimal if I want to send 1000 emails with attachments.
    foreach ($to_emails as $email) {
    wp_mail($email, $subject, $content, $headers, $attachments);

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