Python

Sending Mail Via Postfix: A perfect Python Example :)

Post author By masnun
Post date January 1, 2010
8 Comments on Sending Mail Via Postfix: A perfect Python Example :)

I have been playing with Postfix for the last couple of days. I have already posted a perfect php class for sending email with attachments in a previous post. The Python example I posted earlier does the job for me but it was not perfect like the php one.

After digging a while, I found a nice way to do the same for python as well. I have just tested the codes and the result is perfectly what I desired 🙂

Here’s the code:

import smtplib
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.MIMEText import MIMEText
from email.Utils import COMMASPACE, formatdate
from email import Encoders
import os

def sendMail(to, fro, subject, text, files=[],server="localhost"):
    assert type(to)==list
    assert type(files)==list


    msg = MIMEMultipart()
    msg['From'] = fro
    msg['To'] = COMMASPACE.join(to)
    msg['Date'] = formatdate(localtime=True)
    msg['Subject'] = subject

    msg.attach( MIMEText(text) )

    for file in files:
        part = MIMEBase('application', "octet-stream")
        part.set_payload( open(file,"rb").read() )
        Encoders.encode_base64(part)
        part.add_header('Content-Disposition', 'attachment; filename="%s"'
                       % os.path.basename(file))
        msg.attach(part)

    smtp = smtplib.SMTP(server)
    smtp.sendmail(fro, to, msg.as_string() )
    smtp.close()

# Example:
sendMail(['maSnun <masnun@gmail.com>'],'phpGeek <masnun@leevio.com>','Hello Python!','Heya buddy! Say hello to Python! :)',['masnun.py','masnun.php'])

import smtplib

from email.MIMEMultipart import MIMEMultipart

from email.MIMEBase import MIMEBase

from email.MIMEText import MIMEText

from email.Utils import COMMASPACE, formatdate

from email import Encoders

import os

def sendMail(to, fro, subject, text, files=[],server="localhost"):

assert type(to)==list

assert type(files)==list

msg = MIMEMultipart()

msg['From'] = fro

msg['To'] = COMMASPACE.join(to)

msg['Date'] = formatdate(localtime=True)

msg['Subject'] = subject

msg.attach( MIMEText(text) )

for file in files:

part = MIMEBase('application', "octet-stream")

part.set_payload( open(file,"rb").read() )

Encoders.encode_base64(part)

part.add_header('Content-Disposition', 'attachment; filename="%s"'

% os.path.basename(file))

msg.attach(part)

smtp = smtplib.SMTP(server)

smtp.sendmail(fro, to, msg.as_string() )

smtp.close()

# Example:

sendMail(['maSnun <masnun@gmail.com>'],'phpGeek <masnun@leevio.com>','Hello Python!','Heya buddy! Say hello to Python! :)',['masnun.py','masnun.php'])

8 replies on “Sending Mail Via Postfix: A perfect Python Example :)”

[…] more: Sending Mail Via Postfix: A perfect Python Example « maSnun.com By admin | category: python | tags: does-the-job, last-couple, perfect-php, […]

This code (or the PHP version) isn’t exactly specific to postfix. All you need is a sendmail compatible mailer daemon installed in the system. All of the popular MTAs (postfix, exim, qmail etc) support the sendmail way of sending mail.

[…] to execute the shell command and a Postfix server. However, I came across this clean approach here, which uses smtplib to send the email. I modified my controller.py to reading the CKAN config file […]

[…] 使用这里给出的完美例子 […]

[…] Define sendmail function […]

Thank you!

You solved a tricky problem, I would like to see how the other guy use sendmail with python.

Hi Masnun,

Thanks, nice code. Worked perfectly for my server running postfix.

Have a nice day

thanks that made me spot the email lib.

We can streamline things using more up-to-date code (python 3):

import smtplib
from email.message import EmailMessage

msg = EmailMessage()
msg['From'] = fro
msg['To'] = to
msg['Subject'] = subject        
msg.set_content(text)

for file in files:
   # dumb values here / pseudocode
   msg.add_attachment(fileData, maintype='text', subtype='plain', filename='my-file.text'])

with smtplib.SMTP('localhost') as s:
   s.send_message(msg)

import smtplib

from email.message import EmailMessage

msg = EmailMessage()

msg['From'] = fro

msg['To'] = to

msg['Subject'] = subject

msg.set_content(text)

for file in files:

# dumb values here / pseudocode

msg.add_attachment(fileData, maintype='text', subtype='plain', filename='my-file.text'])

with smtplib.SMTP('localhost') as s:

s.send_message(msg)

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