SMTP client for ESP-32


Hi All,

Doing a search on SMTP in both the old forum and the new one yields no results at all. Surely there must be others attempting this:

  1. My goal is to send simple e-mails from an internet connected ESP-32
  2. I am trying to find a Mongoose-OS example that does this
  3. I can’t find anything
  4. Can you point me in the right direction?

Thanks for your help,



Unfortunately I don’t know any out-of-the-box solution for your question. On the other hand it is a burden for the system to handle an SMTP connection as well. It would make more sense, for example, to create a topic with the data for the e-mail using MQTT, and a server that manages and monitors the devices receives this topic and sends its payload as an e-mail.

Otherwise you can try to integrate solutions like this, because Mongoose OS is a wrapper for ESP-IDF, so standalone libraries can be integrated without problems.


Hi mamuesp,

Thanks for both suggestions. MQTT would be our fallback plan for this. I will try the mobizt ESP-32 e-mail client.