ESP32: send email alerts over SMTP, no cloud service
Send email straight from an ESP32 over SMTP with STARTTLS. Works with your own mail server or any provider, no third-party IoT API.
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4 tutorials
ESP32-CAM: take and email a photo on motion (SMTP)
PIR motion triggers the ESP32-CAM to capture a JPEG and email it as an SMTP attachment with STARTTLS. The alert channel that works with any mail account, no app install.
Pico W: send email alerts over SMTP
Send email straight from a Pico W over SMTP with STARTTLS in MicroPython. Works with your own mail server or any provider's app password, no cloud IoT service in the middle.
Raspberry Pi: send email alerts from shell scripts with msmtp
Configure msmtp on a Raspberry Pi so any shell script or cron job can send email alerts through your own SMTP relay. The pattern that survives.