Feasibility of using EmailSender (SSL/TLS) on Raspberry Pi Pico (RP2040) + W5500

[folkloro.bona]

I am currently trying to implement email sending using the C++/Arduino framework on a system combining a **Raspberry Pi Pico (RP2040)** and a **W5500** (via an Ethernet HAT or similar).

If anyone has a successful implementation or is aware of **specific techniques** to overcome these resource constraints (e.g., using an extremely small TLS library, specific optimization flags), I would be very grateful for your guidance.

Thank you in advance for your insights.

[Renzo Mischianti]

Hi Folkloro,
you can find some resources in this article:

Raspberry Pi Pico and rp2040 board: ethernet w5500 with plain (HTTP) and SSL (HTTPS) requests

Then in the library, there is a specified property to activate embedded SSL:
This is the define
But pay attention only to SSL/TLS non STARTTLS (only port 465, not 587)
Hope this help, give us a feedback.
Bye Renzo

• This reply was modified 3 hours, 26 minutes ago by Renzo Mischianti.

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