Sending an email using Python - python

I'm trying to send myself an email using Python's smtplib module. Here's the code I'm trying to execute:
import smtplib
sender = 'manas.oid#gmail.com'
receivers = ['manas.oid#gmail.com']
message = """From: From Person <manas.oid#gmail.com>
To: To Person <manas.oid#gmail.com>
Subject: SMTP e-mail test
This is a test e-mail message.
"""
try:
smtpObj = smtplib.SMTP('smtp.gmail.com', 587)
smtpObj.sendmail(sender, receivers, message)
print "Successfully sent email"
except smtplib.SMTPException:
print "Error: unable to send email"
However, I get a 'Error:unable to send email' message when I try to execute this script. What seems to be wrong with my script?

You did not login and you did not start the connection with smtpObj.starttls().

To add on to what #Malik says, below are the steps you need to perform before you'll be able to do anything with GMail (provided less secure apps can access your account, see below).
conn = SMTP('smtp.gmail.com',587)
conn.ehlo()
conn.starttls()
conn.ehlo()
conn.login(username,pwd)
conn.sendmail(username, emailID, message)
Note that after recent changes to GMail, you'll need to explicitly allow less secure apps to access your account. GMail would block your request to login until you enable it. Link to enable less secure apps to access: https://support.google.com/accounts/answer/6010255?hl=en

Gmail wouldn't let you send an unauthenticated email from an account.
Instead, use the Gmail API to send emails. Some useful links below:
Authentication: https://developers.google.com/gmail/api/auth/web-server
Email: https://developers.google.com/gmail/api/guides/sending

Related

Sending email with python. Google disables less secure apps

I am trying to send email using python. My code was working fine before Google disabled 'less secure apps'. My email address and password are both correct.
server = smtplib.SMTP_SSL("smtp.gmail.com", 465)
serverEmail = "EMAILADDRESS"
serverPw = "QWERTY"
server.login(serverEmail, serverPw)
subject = "Rejection"
body = "Hi! You've been unfortunately declined access to our system."
message = f'Subject: {subject}\n\n{body}'
server.sendmail("EMAILADDRESS", doctorEmail['email'], message)
server.quit()
I get this error now:
smtplib.SMTPAuthenticationError: (535, b'5.7.8 Username and Password not accepted.
I get this error when i use server.starttls():
smtplib.SMTPNotSupportedError: STARTTLS extension not supported by server.
2-step verification turn on then head over to App password
After is generated passwords
import smtplib
with smtplib.SMTP_SSL('smtp.gmail.com', 465) as connection:
email_address = 'your_email_sender#gmail.com'
email_password = 'App_Passwords_is_generated'
connection.login(email_address, email_password )
connection.sendmail(from_addr=email_address, to_addrs='receiver_email#something.com',
msg="subject:hi \n\n this is my message")
This is working for me. You need to generate an app password for this. See https://support.google.com/accounts/answer/185833?hl=en
import smtplib as smtp
connection = smtp.SMTP_SSL('smtp.gmail.com', 465)
email_addr = 'my_email#gmail.com'
email_passwd = 'app_password_generated_in_Google_Account_Settings'
connection.login(email_addr, email_passwd)
connection.sendmail(from_addr=email_addr, to_addrs='recipient#something.com', msg="Sent from my IDE. Hehe")
connection.close()
For some reason, all of my emails are ending up in SPAM folder of the recipient account though.
Google disabled access for 'less secure apps' for a time on June 2, but around 7 PM US Eastern Time they re-enabled it. So if you just waited a few hours, you didn't have to do anything.
I suspect that somehow they got smacked with the 'law of unintended consequences' but it won't surprise me if they turn this access off again at some point.

When using smtplib and Gmail's SMTP in Python to send emails, why can you not change the sender address?

I am currently trying to send emails via smtplib with the following code:
import smtplib
import email.utils
from email.mime.text import MIMEText
smtpserver = smtplib.SMTP("smtp.gmail.com",587)
smtpserver.ehlo()
smtpserver.starttls()
smtpserver.ehlo()
smtpserver.login('username#gmail.com', 'pwd')
msg['Subject'] = "subject line"
msg['From'] = 'newusername#gmail.com'
msg['To'] = 'friend#gmail.com'
smtpserver.sendmail(sender, recipients, msg.as_string())
When I do something like this, instead of the recipient getting an email from newusername#gmail.com, they get it from username#gmail.com, which was the email I used for authentication.
Is there a way to change this?
This is an intentional security feature in gmail, and other public mail servers, called SMTP AUTH.
Without this feature, anyone with a gmail address could send mail impersonating anyone else with a gmail address. I could send a message claiming to be from you, and the recipient would have no way of knowing it wasn't from you, and you'd have no way to prove it wasn't from you.
But it wouldn't matter anyway, because spammers would be sending so much more email with your address than you do that email addresses would be effectively meaningless, and the whole email system would fall apart. Which is what almost happened in the late 90s. Only a concerted campaign to require SMTP AUTH on all open submission servers, including blacklisting all mail from servers that didn't comply (even the ones that used POP-before-SMTP, IMAP-before-SMTP, IP/MAC verification, or other alternatives to SMTP AUTH) managed to keep the spammers from ruining everything.
Later, another security/anti-spam measure, called DKIM, was added, which gmail also uses: most servers will throw out any messages that isn't signed by the originating server, indicating that the server trusts that the message came from who it says it came from. Obviously, gmail isn't going to certify that a message came from newusername when it actually came from username.1 And, if they did, people who administer other servers would just blacklist gmail signatures are meaningless.
1. Unless they have some reason to trust that username has the right to send mail as newusername—corporate mail servers sometimes do have a feature like that, allowing you to configure things so, e.g., a secretary can send mail from his boss's address without having his boss's password.

Send mail from Gmail smtp via python fail when authenticate [duplicate]

This question already has answers here:
How to send an email with Gmail as provider using Python?
(16 answers)
SMTPAuthenticationError 5.7.14 Please log\n5.7.14 in via your web browser
(10 answers)
Closed 7 years ago.
when i try to send mail using gmail and python error occurred this type of question are already in this site but doesn't help to me
gmail_user = "me#gmail.com"
gmail_pwd = "password"
TO = 'friend#gmail.com'
SUBJECT = "Testing sending using gmail"
TEXT = "Testing sending mail using gmail servers"
server = smtplib.SMTP('smtp.gmail.com', 587)
server.ehlo()
server.starttls()
server.login(gmail_user, gmail_pwd)
BODY = '\r\n'.join(['To: %s' % TO,
'From: %s' % gmail_user,
'Subject: %s' % SUBJECT,
'', TEXT])
server.sendmail(gmail_user, [TO], BODY)
print ('email sent')
error:
server.login(gmail_user, gmail_pwd)
File "/usr/lib/python3.4/smtplib.py", line 639, in login
raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (534, b'5.7.14
<https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=AKgnsbtl1\n5.7.14 Li2yir27TqbRfvc02CzPqZoCqope_OQbulDzFqL-msIfsxObCTQ7TpWnbxIoAaQoPuL9ge\n5.7.14 BUgbiOqhTEPqJfb02d_L6rrdduHSxv26s_Ztg_JYYavkrqgs85IT1xZYwtbWIRE8OIvQKf\n5.7.14 xxtT7ENlZTS0Xyqnc1u4_MOrBVW8pgyNyeEgKKnKNyxce76JrsdnE1JgSQzr3pr47bL-kC\n5.7.14 XifnWXg> Please log in via your web browser and then try again.\n5.7.14 Learn more at\n5.7.14 https://support.google.com/mail/bin/answer.py?answer=78754 fl15sm17237099pdb.92 - gsmtp')
Your code looks correct. Try logging in through your browser and if you are able to access your account come back and try your code again.
Just make sure that you have typed your username and password correct
EDIT:
Google blocks sign-in attempts from apps which do not use modern security standards (mentioned on their support page). You can however, turn on/off this safety feature by going to the link below:
Go to this link and select Turn On
https://www.google.com/settings/security/lesssecureapps
Your code looks correct but sometimes google blocks an IP when you try to send a email from an unusual location. You can try to unblock it by visiting https://accounts.google.com/DisplayUnlockCaptcha from the IP and following the prompts.
Reference: https://support.google.com/accounts/answer/6009563
I have just sent an email with gmail through Python.
Try to use smtplib.SMTP_SSL to make the connection. Also, you may try to change the gmail domain and port.
So, you may get a chance with:
server = smtplib.SMTP_SSL('smtp.googlemail.com', 465)
server.login(gmail_user, password)
server.sendmail(gmail_user, TO, BODY)
As a plus, you could check the email builtin module. In this way, you can improve the readability of you your code and handle emails headers easily.

How to send an email using Python

I made a simple keylogger in C++. I want to send an email with the input the keylogger made using Python. I know you can do it with C++ but I want to use Python.
You I hope that your keylogger is for educational purposes only. Anyway,
here is a simple way to send one e-mail using Python script.
#!/usr/bin/python
import smtplib
sender = 'from#fromdomain.com'
receivers = ['to#todomain.com']
message = """From: From Person <from#fromdomain.com>
To: To Person <to#todomain.com>
Subject: SMTP e-mail test
This is a test e-mail message.
"""
try:
smtpObj = smtplib.SMTP('localhost')
smtpObj.sendmail(sender, receivers, message)
print "Successfully sent email"
except SMTPException:
print "Error: unable to send email"
Here, you have placed a basic e-mail in message, using a triple quote, taking care to format the headers correctly. An e-mail requires a From, To, and Subject header, separated from the body of the e-mail with a blank line.
To send the mail you use smtpObj to connect to the SMTP server on the local machine and then use the sendmail method along with the message, the from address, and the destination address as parameters (even though the from and to addresses are within the e-mail itself, these aren't always used to route mail).
If you're not running an SMTP server on your local machine, you can use smtplib client to communicate with a remote SMTP server. Unless you're using a webmail service (such as Hotmail or Yahoo! Mail), your e-mail provider will have provided you with outgoing mail server details that you can supply them, as follows:
smtplib.SMTP('mail.your-domain.com', 25)
Source: http://www.tutorialspoint.com/python/python_sending_email.htm

How to handle leaving message on website in python

I am developing my first website. I have page where people can leave message to me. What I am doing is sending a AJAX call to the server, and the server gets the content of the message, then login in an gmail account and send the message to another gmail account using python's email libraries smtplib and email.
It works ok, but the problem is it takes more than one minute on my laptop, the loading image on the client side would keep spinning during the time. I think the bottleneck is login().
mailServer = smtplib.SMTP("smtp.gmail.com", 587)
mailServer.ehlo()
mailServer.starttls()
mailServer.ehlo()
# login, send email, logout
mailServer.login(conf.user, conf.pw)
mailServer.sendmail(conf.user, to, msg.as_string())
mailServer.close()
So is there any way to speed this up, or other ways to do this.
Thanks
So the delay is probably caused by Google's SMTP server as they do a reverse lookup of the IP address of your webserver - mail systems often do this as part of sending e-mail.
What you have coded is only needed if you intended to send mail out from your account - that is when you need to perform authenticated SMTP. If you want to only mail your own account then you can remove the login step. Note, that you will have to change the mail server from smtp.gmail.com to one of Google's inbound mail (MX) servers. Also, if you are performing a simple forward you will have to handle e-mail rejection or other connection problems so having your script dump the mail to a simple mail server running on the mail server would be helpful.

Categories