@Bunnz said in "proxy handshake error"/"Failure when receiving data from the peer" when using proxy with Mail Module:
And proxy is working in HTTP request just fine
email ports are disallowed for these proxies.

This module contains only 2 actions: closing and opening the browser. Used when you need to more flexibly manage the state of your browser or browsers in threads. The browser is closed by default. When using the "Open Browser" action, it opens automatically. But if you close the browser manually, then automatically it will no longer open. This is where module actions come in handy
More information in telegram chat @bas_english