Reply To: Plus alias support test message never sends

[Jennifer Sabree]

Here’s a possible clue from the error log. We’re hosted on Pantheon.

wp-includes/PHPMailer/PHPMailer.php:1925

Uncaught Error: Class ‘PHPMailer\PHPMailer\SMTP’ not found in /code/wp-includes/PHPMailer/PHPMailer.php:1925
Stack trace:
#0 /code/wp-includes/PHPMailer/PHPMailer.php(2046): PHPMailer\PHPMailer\PHPMailer->getSMTPInstance()
#1 /code/wp-includes/PHPMailer/PHPMailer.php(1962): PHPMailer\PHPMailer\PHPMailer->smtpConnect(Array)
#2 /code/wp-includes/PHPMailer/PHPMailer.php(1640): PHPMailer\PHPMailer\PHPMailer->smtpSend(‘Date: Fri, 19 N…’, ‘This is a multi…’)
#3 /code/wp-includes/PHPMailer/PHPMailer.php(1473): PHPMailer\PHPMailer\PHPMailer->postSend()
#4 /code/wp-content/plugins/bbpnns-reply-by-email/includes/controller/ajax.class.php(175): PHPMailer\PHPMailer\PHPMailer->send()
#5 /code/wp-includes/class-wp-hook.php(303): BbpnnsReplyByEmail_Controller_Ajax->send_plus_alias_test(Array)
#6 /code/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(”, Array)
#7 /code/wp-includes/plugin.php(470): WP_Hook->do_action(Array)
#8 /code/wp-admin/admin-ajax.php(187): do_action(‘wp_ajax_Bbpnns