CODE EXAMPLE FOR PYTHON

use proxy to connect smtp python

import smtplib
import socks

#'proxy_port' should be an integer
#'PROXY_TYPE_SOCKS4' can be replaced to HTTP or PROXY_TYPE_SOCKS5
socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS4, proxy_host, proxy_port)
socks.wrapmodule(smtplib)

smtp = smtplib.SMTP()
...