Sending Emails With Python
This is the easiest way you can start sending emails with Python using only two libraries, smtplib
and email
.
We will be using Gmail’s free RESTful API in this examples.
Let’s check out some code!
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
message = MIMEMultipart()
message["To"] = 'To line here.'
message["From"] = 'From line here.'
message["Subject"] = 'Subject line here.'
title = '<b> Title line here. </b>'
messageText = MIMEText('''Message body goes here.''','html')
message.attach(messageText)
email = 'Your Gmail address here.'
password = 'Your app password here.'
server = smtplib.SMTP('smtp.gmail.com:587')
server.ehlo('Gmail')
server.starttls()
server.login(email,password)
fromaddr = 'From line here.'
toaddrs = 'Address you send to.'
server.sendmail(fromaddr,toaddrs,message.as_string())
server.quit()
Code Walkthrough
First, let’s import smtplib
. Then MIMEMultipart
and MIMEText
from email.mime.multipart
and email.mime.text
respectively:
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
Then, we call MIMEMultiPart()
and instantiate it to the variable Message
. We then give a string value to each variables in Message
, To
, From
and Subject
:
Message = MIMEMultipart()
Message["To"] = 'To line here.'
Message["From"] = 'From line here.'
Message["Subject"] = 'Subject line here.'
We will also give a title to our email through the variable title
, add a message to our email through MIMEText()
and instantiate it to the variable messagetext
and finally attach our message to our main variable Message using the attach()
function.
title = '<b> Title line here. </b>'
messageText = MIMEText('''Message body goes here.''','html')
Message.attach(messageText)
Let’s add our Gmail address and our App password, click the link here if you don’t know how to get one:
email = 'Your Gmail address here.'
password = 'Your App password here.'
Then, we add Gmail’s SMTP server and port we will be connecting to with smtplib.SMTP(smtp.gmail.com:587)
and instantiate it to the variable server
, these are smtp.gmail.com
and 587
respectively. (With ‘:’ in between them):
server = smtplib.SMTP('smtp.gmail.com:587')
We then add an ehlo statement using server.ehlo(‘Gmail’)
, this should be your domain name, this is useful when sending en email to another mail server that supports ESMTP, let’s just put Gmail to keep it simple:
server.ehlo('Gmail')
Let’s also start the TLS protocol with server.starttls()
, this tells the mail server we want to send our email through a secure connection:
server.starttls()
We login to the mail sever using server.login(email,password)
:
server.login(email,password)
Let’s add a from address and to address(es), using fromaddr
and toaddrs
respectively:
fromaddr = 'Your Gmail address.'
toaddrs = 'Destination address.'
Finally, we send our email using server.sendmail(fromaddr,toaddrs,message.as_string())
and we close our connection to the mail server using server.quit()
:
server.sendmail(fromaddr,toaddrs,message.as_string())
server.quit()
Result
Let’s launch it in a Terminal:
Email sent directly to my inbox:
Simple and easy!
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