✉️ Email Delivery
Documentation, reference material and tutorials for CRM-NG SMTP Email: setup guides for every mail service, troubleshooting, and one article per error message.
Features and settings
17 articlesAlerts, routing, backup transport, controls, constants and the rest of the settings.
- Backup SMTP transportSet up a second SMTP server that sends your email automatically when your main mailer fails, and learn which failures it never retries.
- Debug eventsUse Tools → Debug Events to see email sending errors and detailed diagnostics, control how long they are kept, and share them safely with support.
- Delivery and bounce webhooksLet SendGrid, Mailgun, Postmark, Brevo or your own tool report delivered, bounced and spam events back into the CRM-NG SMTP email log.
- Discord alertsPost a message to a Discord channel whenever your site fails to send an email, using a channel webhook.
- Email controlsStop five routine WordPress notification emails, such as password-change notices and automatic update reports, from the Email Controls tab.
- Email failure alertsGet told straight away when your site cannot send an email, by email, chat, SMS or webhook, and why a non-email channel is the safer choice.
- Generic webhook alertsSend a small JSON message to any address you choose whenever an email fails, to feed monitoring, incident or automation tools.
- Microsoft Teams alertsSend a message to a Microsoft Teams channel whenever your site fails to send an email, using a Teams webhook or a Workflows flow.
- Miscellaneous settingsWhat each switch on the Misc tab does: stop all email, hide notices and the dashboard widget, weekly summaries, optimized sending, rate limiting and uninstall.
- One-Click Setup for Gmail and Microsoft 365Connect Gmail or Microsoft 365 by signing in once, with no Google Cloud project or Entra app registration of your own.
- Scheduled actionsUnderstand the background tasks CRM-NG SMTP runs, read their status on Tools → Scheduled Actions, and get the queue moving again when it stalls.
- Securing settings with wp-config constantsKeep mail passwords and API keys out of the database by defining CRM-NG SMTP settings in wp-config.php, with the full list of constants per mailer.
- Slack alertsPost a message to a Slack channel whenever your site fails to send an email, using a Slack incoming webhook.
- Smart routingSend chosen emails through your backup SMTP server, based on who they are to or what the subject says, while everything else uses your main mailer.
- SMS alerts with TwilioGet a text message on your phone whenever your site fails to send an email, using your own Twilio account.
- Using Force From EmailWhy other plugins change your sender address, what Force From Email and Force From Name do about it, and which mailers lock the From address.
- WhatsApp alertsSend a WhatsApp message whenever your site fails to send an email, using the WhatsApp Cloud API from Meta.