Develop Reference

Sending e-mail with a Python script deployed on a Linode server using the SMTP library

So I've created a script which sends an update e-mail when the script is finished running. It all works fine locally. But when deployed and ran on a Linode server it doesn't work anymore. Here is the code:
def email(products, new_products, updated_products):
#print(products, new_products, updated_products)
message = EmailMessage()
message.set_content("Products scraped: {}, New products: {}, Updated products: {}".format(products, new_products, updated_products))
message['FROM'] = "e-mail"
message['TO'] = ["e-mail"]
message['SUBJECT'] = "Update"
context = ssl.create_default_context()
#set up SMTP server
with smtplib.SMTP('smtp.gmail.com', 587) as smtp:
smtp.starttls(context=context)
smtp.login(message['FROM'], "password")
smtp.send_message(message)
smtp.quit()
The error occurs on the line: with smtplib.SMTP('smtp.gmail.com', 587) as smtp. I've tried different ports, but it all results in this error: TimeoutError: [Errno 110] Connection timed out. Has anyone had this problem? Or does anyone have another good way to send an e-mail from a server? Thanks in advance!

Linode block outgoing mail by default to prevent spam.
https://www.linode.com/community/questions/19082/i-just-created-my-first-linode-and-i-cant-send-emails-why-mailing-ports-25-465-a

Try enabling less secure apps for the email id you want to send emails from

Sending mail with through python with roundcube

Am trying to send mail with python using my rouncube webmail but when i run it outputs this error TimeoutError: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
I checked in my mail and my port is "290" which have provided but when i run the function the mail doesn't send. I know how to send with gmail by turning on less secure app access but don't know how to work around to send with my webmail.
I need your suggestion to work around it.
from smtplib import SMTP_SSL as SMTP
import logging, logging.handlers, sys
from email.mime.text import MIMEText
def send_message():
text = '''
Hello,
Trying to send mail from my webmail in python 3.
Sincerely,
My name
'''
message = MIMEText(text, 'plain')
message['Subject'] = "Email Subject"
my_email = 'joe#mycompany.com'
# Email that you want to send a message
message['To'] = my_email
# You need to change here, depending on the email that you use.
# For example, Gmail and Yahoo have different smtp. You need to know what it is.
connection = SMTP('smtp.roundcube.com', 290)
connection.set_debuglevel(True)
# Attention: You can't put for example: 'your_address#email.com'.
# You need to put only the address. In this case, 'your_address'.
connection.login('fred.kings', 'fredsw321a')
try:
# sendemail(<from address>, <to address>, <message>)
connection.sendmail(my_email, my_email, message.as_string())
finally:
connection.close()
send_message()

I'm using:
Ubuntu 18.04.4 LTS.
Python 3.7.4
Jupyter-Notebook 6.0.1
Anaconda 1.7.2
I can successfully send an email through Python with Roundcube, executing the following script in a jupyter-notebook cell:
import smtplib
email = "myemail#mycompany.com"
password = "mypassword"
to = ["destination#dest.com"]
with smtplib.SMTP_SSL('mail.mycompany.com', 465) as smtp:
smtp.login(email, password)
subject = "testing mail sending"
body = "the mail itself"
msg = "Subject: {}\n\n{}".format(subject, body)
smtp.sendmail(email, to, msg)
I found this information as follows (so you can find yours):
Log into you company email.
Look for the following image and click on it (Webmail Home).
You'll see something like the following:
Scroll down, looking for the following image and click on it (Configure Mail...).
Look for the info at mail server section.
If there are using port 465 (such as in my case) it means that you want to use smtplib.SMTP_SSL instead of smtplib.SMTP.
NOTE: The previous worked for me from my personal computer, however, when I tried to use the same code, from my "virtual machine" at office, it does not work, which makes me think that there is a system limitation, and that the problem is not code-related.
Hope it helps, regards.

How to create a free SMTP server

I am not at all familiar with SMTP but I am working on sending emails through Python code. I have the code but I need to pass SMTP host name for it to actually work. Is there any service which provides a free SMTP service that I leverage for testing out my code? I looked around to create my own SMTP server but couldn't find something that provides a step by step guide to create a SMTP server. I want to create a free server(or if there is any free service) that will provide me with a host name(ip address) so that I can put that host name in my python code and execute it from any machine.
If anyone can point me in the right direction it will be helpful.

import smtplib
username = 'user'
password = 'pwd'
from_addr = 'username#gmail.com'
to_addrs = 'username#gmail.com'
msg = "\r\n".join([
"From: username#gmail.com",
"To: username#gmail.com",
"Subject: subject",
"",
"message"
])
server = smtplib.SMTP('smtp.gmail.com:587')
server.ehlo()
server.starttls()
server.login(username, password)
server.sendmail(from_addr, to_addrs, msg)
server.quit()
You can use mutt linux command also here.
See :
https://docs.python.org/3/library/smtplib.html
https://support.google.com/a/answer/176600?hl=en

You need service like https://mailtrap.io/. You'll get SMTP server address (eventually port number) that you point your application to. All e-mails produced by your application will be then intercepted by mailtrap (thus not delivered to the real To: address).
They offer free variant that seems to be suitable for your needs.

Python smtplib Name or service not known

i was making a simple daemon in python which takes a mail queue and delivers them to the recipients. Everything is working pretty good except from the smtplib which is actually the most important part.
What happens?
When im running the script im getting the following error:
root#vagrant-ubuntu-trusty-64:/mailer/tests# python daemon_run.py
[Errno -2] Name or service not known
From what i found on the internet this error occurs when it cant connect to the SMTP server. Most users suggested fixes on postman which i dont use since i take advantage of google's services.
The code
headers = "\r\n".join(["from: " + "my_email#gmail.com",
"subject: " + "Testing",
"to: " + "recipient#gmail.com",
"mime-version: 1.0",
"content-type: text/html"])
content = headers + "\r\n\r\n" + template_content
server = smtplib.SMTP('smtp.google.com', 587)
server.ehlo()
server.starttls()
server.login('my_email#gmail.com', 'pass')
server.sendmail('my_email#gmail.com', 'recipient#gmail.com', content)
server.close()
Please note that i'm using exactly the same login details in PHPMailer which actually works.
Any ideas?

It seems like the goold old typo hit again. Gmail's SMTP is smtp.gmail.com and not smtp.google.com

Sending an Email via Python

I'm attempting to send an email with Python. From what I can tell, all the following code needs is a valid recipient and a host HOST. I'm unsure on how to get the host. What is the simplest way?
import smtplib
import string
SUBJECT = "Test email from Python"
TO = "python#mydomain.com"
FROM = "python#mydomain.com"
text = "blah blah blah"
BODY = string.join((
"From: %s" % FROM,
"To: %s" % TO,
"Subject: %s" % SUBJECT ,
"",
text
), "\r\n")
server = smtplib.SMTP(HOST)
server.sendmail(FROM, [TO], BODY)
server.quit()

The HOST is the SMTP relay provided by your ISP (typically related to the domain name of your from address). If you use a desktop mail client, you'll be able to see the SMTP server listed in your mail settings. If you're hosting using shared hosting, your hosting provider should be able to provide an SMTP server for you to use.

We are not in the position to tell you a valid mail host aka smtp server. You should know where to send your mail to: either ask your organization IT or ask your mail provider.