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

how to send email with python directly from server and without smtp

I'm php programmer and with php you can send email with server directly, for example this code send email to client:
<?php
$to = 'nobody#example.com';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: webmaster#example.com' . "\r\n" .
'Reply-To: webmaster#example.com' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
mail($to, $subject, $message, $headers);
?>
but in python you have to use smtplib and gmail or hotmail servers for sending email.
I wonder is there anyway to send email with python direct from server?

Other Options
When you use the mail functionality in PHP it is using the local sendmail of the host you are on, which in turn is simply a SMTP relay locally, of course locally sending emails is not really suggested as these are likely not have a good delivery rate due to DKIM, SPF and other protection mechanisms. If you care about deliverability I would recommend using either
An external SMTP server to send mail via which is correctly configured for the sending domain.
An API such as AWS SES, Mailgun, or equivalent.
If you do not care about deliverability then you can of course use local SendMail from Python, SendMail listens on the loopback address (127.0.0.1) on port 25 just like any other SMTP server, so you may use smtplib to send via SendMail without needing to use an external SMTP server.
Sending Email via Local SMTP
If you have a local SMTP server such as SendMail check it is listening as expected...
netstat -tuna
You should see it listening on the loopback address on port 25.
If it's listening then you should be able to do something like this from Python to send an email.
import smtplib
sender = 'no_reply#mydomain.com'
receivers = ['person#otherdomain.com']
message = """From: No Reply <no_reply#mydomain.com>
To: Person <person#otherdomain.com>
Subject: Test Email
This is a test e-mail message.
"""
try:
smtp_obj = smtplib.SMTP('localhost')
smtp_obj.sendmail(sender, receivers, message)
print("Successfully sent email")
except smtplib.SMTPException:
print("Error: unable to send email")

Relaying denied. IP name possibly forged [216.136.38.14]')} Python error

I am trying to send mail using SMTP server but I am getting error but the same code is working using gmail.so can you help me to fingd the solution.
from smtplib import SMTP
import datetime
debuglevel = 0
smtp = SMTP()
smtp.set_debuglevel(debuglevel)
smtp.connect('e3-smtp-gtm.zxp.com', 25)
from_addr = "from mail id"
to_addr = "to mail id"
subj = "hello"
date = datetime.datetime.now().strftime( "%d/%m/%Y %H:%M" )
message_text = "Hello\nThis is a mail from your server\n\nBye\n"
msg = "From: %s\nTo: %s\nSubject: %s\nDate: %s\n\n%s" % ( from_addr, to_addr, subj, date, message_text )
smtp.sendmail(from_addr, to_addr, msg)
smtp.quit()
When I run above code I am getting error as below
{'to mail id': (550, b'5.7.1 ...Relaying denied. IP name possibly forged [216.136.38.14]')}
Can anyone help me what is main reason for getting this error

An SMTP server is a protected resource without public access. Without the restrictions spammers would misuse it a lot.
While everybody may submit messages that will be delivered locally (incoming mail), only authorized users may submit messages to be forwarded to other servers on Internet (outgoing mail). Usually the authorization is based on IP address or user/password login.
The meaning of "Relaying denied" is that the SMTP server does not recognize you as an authorized user who can send email wherever he wants. You should provide login/password given to you by the server's admin. In most cases that requires STARTTLS prior to login.
Also, connecting to port 25 is discouraged. This port is intended for server to server mail transfer. The initial message submition should go to the TCP port 587.

Sending an email, via python, from one outlook account to another

I'm writing a program to help the school's Biology Department and it involves sending an email. I've gathered all of the variables I need for the content of the message, it's just the actual sending of the email that's causing some issues.
I've looked around and realized that I was using code that sent to gmail, whereas the servers at school use Outlook 2010. Once I remembered that, I looked around for some python code that sent emails, but so far nothing has worked.
It all seems very complicated for just sending an email, but I need some help as to were to go from here.
gsal.org.uk is our school's web server address, which is an outlook server.
The current error that I am receiving is smtplib.SMTPException: STARTTLS extension not supported by server., but I keep receiving various errors with everything I try.
This is the code:
fromaddr = "test#gsal.org.uk"
toaddrs = "technicians#gsal.org.uk"
msg = "\r\n".join([
"From: user",
"To: user",
"Subject: Practical Request",
"",
"Test"
])
server = smtplib.SMTP_SSL('smtp.gmail.com:465')
server.ehlo()
server.starttls()
# server.login(username,password)
server.sendmail(fromaddr, toaddrs, msg)
server.quit()
messagebox.showinfo("Success!", "Your request has been sent successfully.")
All I want to do is send an email from an email account (specified within the program) to an email account that will soon be set up at school called technicians#gsal.org.uk. Any help appreciated.
EDIT
Thought I'd add the fact that if I remove the starttls() line, I get this:
smtplib.SMTPSenderRefused: (530, b'5.5.1 Authentication Required. Learn more at\n5.5.1 https://support.google.com/mail/answer/14257 hw1sm42144009wjb.6 - gsmtp', 'test#gsal.org.uk')
I've read that link, but it seems to be talking about gmail? I want to use outlook? I understand that I need to do authentication, but how?

In order to fight spam and protect resources, a normally configured SMTP server provides its services only to its owner (e.g. a company, organization or registered customers). Your school server probably accepts mail only if it is:
addressed to the school's own domain, or
coming from an authenticated person (e.g. a student, teacher), or
coming from a host with IP address belonging to the school's LAN (when allowed by the admin)
Further, a SMTP server communicates with other servers on TCP port 25 and with users submitting new mail (which is your case) on port 465 or 587. (Port 25 was used in the past for all mail, this is now deprecated)
Communication on port 465 is always encrypted (TLS). Communication on port 587 starts in plaintext, but with the STARTTLS command, the encryption is turned on. A successfull STARTTLS is usually required to allow authentication (login).
Why your progam does not work?
You are trying to start TLS on an TLS connection. It has been started. Either don't STARTTLS or change the port to 587.
You are using gmail's server to send a message not addressed to gmail. In this case you must login with a name and a password as a registered gmail user.
What should help? Contact the local admin for details about using the school's own server.

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.