To show the basics of sending an email via SMTP
When an IOT device detects a malfunction, it is good to be able to notify the user. We can do that either by sending them an email or via a service like MQTT.
This sample shows how to send an email via SMTP directly from the ESP8266.
smtp2go conveniently provides a free account.
Create an account here: https://www.smtp2go.com/setupguide/arduino/ .
It needs some configuration: * the name of the SMTP server, eg “mail.smtp2go.com” * a username and password * the name and email of the person from whom the email will be sent * the name and email of the person to send the email to
Edit the sample to replace these values and the SSID etc.