CODEWITHSUNDEEP
pythonsmtplib
Volatil3
Volatil3

Reputation: 14978

Smtplib: Connection unexpectedly closed

I am using following code:

def mailme():
    print('connecting')
    server = smtplib.SMTP('mail.server.com', 26)
    server.connect("mail.server.com", 465)
    print('connected..')
    server.ehlo()
    server.starttls()
    server.ehlo()
    server.login('[email protected]', "pwd")
    text = 'TEST 123'
    server.sendmail('[email protected]', '[email protected]', text)
    server.quit()

but it gives error:

raise SMTPServerDisconnected("Connection unexpectedly closed")
smtplib.SMTPServerDisconnected: Connection unexpectedly closed

When connect via Telnet it works:

~ telnet mail.zoo00ooz.com 26
Trying 1.2.3.4...
Connected to server.com.
Escape character is '^]'.
220-sh97.surpasshosting.com ESMTP Exim 4.87 #1 Mon, 01 Jan 2018 00:23:02 -0500 
220-We do not authorize the use of this system to transport unsolicited, 
220 and/or bulk e-mail.
^C^C

Upvotes: 0

Views: 9294

Answers (2)

MariMuthuKumar S
MariMuthuKumar S

Reputation: 31

I have attached the sample mailing code using Python 3.6.0 below

import smtplib as sl
server = sl.SMTP('smtp.gmail.com', 587)
server.ehlo()
server.starttls()
server.ehlo()
server.login('[email protected]','sender_password')
server.sendmail('[email protected]',['[email protected]','[email protected]','[email protected]'],'data')

Upvotes: 3

MCO System
MCO System

Reputation: 424

You don't need to connect twice ! As the documentation says:

exception smtplib.SMTPServerDisconnected¶

This exception is raised when the server unexpectedly disconnects, or when an attempt is made to use the SMTP instance before connecting it to a server.

Your code should be more something like this (even like this its somewhat over complicated, see documentation for a sample code)

def mailme():
    SERVER_NAME='mail.whatever.com'
    SERVER_PORT=25
    USER_NAME='user'
    PASSWORD='password'
    print('connecting')
    server = smtplib.SMTP(SERVER_NAME, SERVER_PORT)
    print('connected..')
    server.ehlo()
    server.starttls()
    server.ehlo()
    server.login(USER_NAME, PASSWORD)
    text = 'TEST 123'
    server.sendmail('[email protected]', '[email protected]', text)
    server.quit()

mailme()

Upvotes: 0

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