I tried the code sample against GMail using `resty` command-line tool and I get this error:
/usr/local/openresty/site/lualib/resty/mail/smtp.lua:155: closed
Same error when I try from within nginx.
I checked my GMail config (server, port, credentials) against some Python code and it works fine.
@sahuguet: Sorry for the delay. Can you provide more details on how you're trying to connect (eg, what port, whether starttls is being used, etc)?
Or as another test, could you try creating this `test-mail.lua` file: https://gist.github.com/GUI/4ec6e695b400d8128b5708c2acf4e8fa, fill in your own Gmail `username` and `password`, and then try running `resty test-mail.lua`? I was just able to successfully run this test, so I'm curious if you'd see the same `closed` error with this example.