wp_mail() function to turboSMTP. This includes WooCommerce and form plugins that use wp_mail(). A plugin with its own delivery service may need separate configuration.
Use one mail delivery plugin at a time. Configure SPF and DKIM for your sending domain. Authentication helps receivers verify your mail; inbox placement still depends on their filtering decisions.
Configure the plugin
1
Install the TurboSMTP plugin
In your WordPress admin, go to Plugins → Add New Plugin. Install and activate turboSMTP. Follow its credential setup with your Consumer Key and Consumer Secret. In API mode the plugin always uses the Global endpoint
api.turbo-smtp.com, and the key needs HTTP API Sending permission. To send through European servers, use the plugin’s SMTP mode instead.2
Or choose SMTP sending
The plugin’s SMTP mode lets you pick the Global or European host. The username field is labelled Username (email); enter your Consumer Key there, not your account email. The same values work in other SMTP plugins such as WP Mail SMTP (Other SMTP):
Both hosts support STARTTLS on 587 or 2525 and implicit TLS on 465 or 25025. Port 25 is also available. Enable SMTP Sending on the key and check any IP restrictions.
3
Send a test email
Use the plugin’s test email feature and check Analytics in turboSMTP. Then test an actual form submission or order email to confirm that application’s delivery path.