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I want to send an email without login to server in Python. I am using Python 3.6. I tried some code but received an error. Here is my Code :
import smtplib
smtpServer='smtp.yourdomain.com'
fromAddr='[email protected]'
toAddr='[email protected]'
text= "This is a test of sending email from within Python."
server = smtplib.SMTP(smtpServer)
server.set_debuglevel(1)
server.sendmail(fromAddr, toAddr, text)
server.quit()
I expect the mail should be sent without asking user id and password but getting an error :
"smtplib.SMTPSenderRefused: (530, b'5.7.1 Client was not authenticated', '[email protected]')"
924
First, you have to have a SMTP server to send an email. When you don't have one, usually outlook's server is used. But outlook only accepts authenticated users, so if you don't want to login into the server, you have to pick a server that doesn't need authentication.
Create a new SharePoint list called 'EmailMessages'. It should have at least these 3 fields: EmailTo (text), EmailSubject (text), EmailBody (multi-line text). Then create a Flow to send an email when a new item is inserted into the list. The great hing about this is you can choose what account the email is sent from.
Python provides smtplib module, which defines an SMTP client session object that can be used to send mail to any Internet machine with an SMTP or ESMTP listener daemon. SMTP stands for Simple Mail Transfer Protocol. The smtplib module is useful for communicating with mail servers to send mail.
SMTP stands for ‘ Simple Mail Transfer Protocol ‘. SMTP uses Port 587 for SSL & port 465 without SSL. It deals with outgoing emails. SMTP makes sure that message is delivered to the right email address. All the examples mentioned in this blog use the SMTP server. It is not possible to send email without SMTP in python.
But outlook only accepts authenticated users, so if you don't want to login into the server, you have to pick a server that doesn't need authentication. A second approach is to setup an internal SMTP server. After you setup the internal SMTP server, you can use the "localhost" as the server to send the email.
b) 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.
Starting a Secure SMTP Connection When you send emails through Python, you should make sure that your SMTP connection is encrypted, so that your message and login credentials are not easily accessed by others. SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are two protocols that can be used to encrypt an SMTP connection.
I am using like this. It's work to me in my private SMTP server.
import smtplib
host = "server.smtp.com"
server = smtplib.SMTP(host)
FROM = "[email protected]"
TO = "[email protected]"
MSG = "Subject: Test email python\n\nBody of your message!"
server.sendmail(FROM, TO, MSG)
server.quit()
print ("Email Send")
import win32com.client as win32
outlook=win32.Dispatch('outlook.application')
mail=outlook.CreateItem(0)
mail.To='To address'
mail.Subject='Message subject'
mail.Body='Message body'
mail.HTMLBody='<h2>HTML Message body</h2>' #this field is optional
# To attach a file to the email (optional):
attachment="Path to the attachment"
mail.Attachments.Add(attachment)
mail.Send()
The code below worked for me. First, I opened/enabled Port 25 through Network Team and used it in the program.
import smtplib
smtpServer='smtp.yourdomain.com'
fromAddr='[email protected]'
toAddr='[email protected]'
text= "This is a test of sending email from within Python."
server = smtplib.SMTP(smtpServer,25)
server.ehlo()
server.starttls()
server.sendmail(fromAddr, toAddr, text)
server.quit()
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