#!/usr/bin/env python3
import smtplib
import email
from email.mime.text import MIMEText
import random
import os
import sys

host = "smtp.example.com"
user = "your_username"
password = "your_password"
default_from = "from@example.com"
indirect_to = "to@somewhere-else.com"

def test_message(mto = "tzs@tzs.net", mfrom = default_from):
    tag = str(os.getpid()) + "." + str(random.randint(1, 1000000))
    msg = MIMEText("test message body " + tag)
    msg['Subject'] = "test " + tag
    msg['To'] = mto
    msg['From'] = mfrom
    msg['Date'] = email.utils.formatdate(localtime=True)
    return msg

def test25_direct():
    try:
        server = smtplib.SMTP(host, 25)
        server.set_debuglevel(1)
        msg = test_message()
        server.send_message(msg)
        server.quit()
    except:
        print("direct 25 failed:", sys.exc_info()[0])

def test25_indirect():
    try:
        server = smtplib.SMTP(host, 25)
        server.set_debuglevel(1)
        msg = test_message(indirect_to)
        server.send_message(msg)
        server.quit()
    except:
        print("indirect 25 failed:", sys.exc_info()[0])

def test25_direct_ssl():
    try:
        server = smtplib.SMTP_SSL(host, 465)
        server.set_debuglevel(1)
        server.login(user, password)
        msg = test_message()
        server.send_message(msg)
        server.quit()
    except:
        print("direct 465 SSL failed:", sys.exc_info()[0])

def test25_indirect_ssl():
    try:
        server = smtplib.SMTP_SSL(host, 465)
        server.set_debuglevel(1)
        server.login(user, password)
        msg = test_message(indirect_to)
        server.send_message(msg)
        server.quit()
    except:
        print("indirect 465 SSL failed:", sys.exc_info()[0])

def test25_direct_starttls():
    try:
        server = smtplib.SMTP(host, 587)
        server.set_debuglevel(1)
        server.starttls()
        server.login(user, password)
        msg = test_message()
        server.send_message(msg)
        server.quit()
    except:
        print("direct 587 STARTTLS failed:", sys.exc_info()[0])

def test25_indirect_starttls():
    try:
        server = smtplib.SMTP(host, 587)
        server.set_debuglevel(1)
        server.starttls()
        server.login(user, password)
        msg = test_message(indirect_to)
        server.send_message(msg)
        server.quit()
    except:
        print("indirect 587 STARTTLS failed:", sys.exc_info()[0])

#print(test_message())
#test25_direct()
#test25_indirect()
#test25_direct_ssl()
#test25_indirect_ssl()
#test25_direct_starttls()
#test25_indirect_starttls()