googleroundcube

Configure SMTP for outbound emails

Google Cloud Platform doesn’t allow SMTP traffic through default ports: 25, 465, 587. Check Google cloud documentation to learn how to use a VPN to bypass these restrictions or use a different port for sending emails from your application.

Configure the IMAP/SMTP settings for your email provider by modifying the following options in the /opt/bitnami/apps/roundcube/htdocs/config/main.inc.php file. The example below is for Gmail.

// IMAP
$config['default_host'] = 'ssl://imap.gmail.com';
$config['default_port'] = 993;
// SMTP
$config['smtp_server'] = 'tls://smtp.gmail.com';
$config['smtp_port'] = 587;

To configure the application to use other third-party SMTP services for outgoing email, such as SendGrid or Mandrill, refer to the FAQ.

NOTE: If you are using Gmail as the outbound email server and have experienced issues trying to send emails correctly, check the Gmail SMTP troubleshooting page to learn the causes of these issues and how to solve them.