Python Send Email Via Gmail – Watch Now This tutorial contains related video tutorials by the real Python team. Follow this tutorial to deepen your understanding: Send emails in Python.
You probably found this tutorial because you want to send emails using Python. you want to receive email notifications about your code; You may want to send confirmation emails to users when they create an account, or send emails to members of your organization to remind them to pay their dues. Sending emails manually is a time-consuming and error-prone task, but it’s easy to automate in Python.
Python Send Email Via Gmail
By the end of this lesson you will find several business email services; It comes in handy when you want to send a large number of emails.
How To Send Emails Using Python (updated For 2021)
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RFC 821 protocol is used for SMTP. The examples in this tutorial will use the Gmail SMTP server to send emails. But the same principles apply to other email services. Although most email providers use connection ports similar to those in this tutorial. You can do a quick Google search to confirm.
To get started with this tutorial, Create a Gmail account for development or set up an SMTP server that will extract the emails you send and print them from the command line. Both options are listed below. Local SMTP servers are useful for troubleshooting e-mail performance issues and making sure your e-mail is intact before sending e-mail.
If you decide to use a Gmail account to send your emails. We recommend that you open an account for developing your code. Because you have to configure your Gmail account to allow access to your Python code. Because there is a chance that your login details may be accidentally exposed. Additionally, I noticed that my test account’s inbox quickly filled up with test emails; This is reason enough to create a new Gmail account for development.
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. When testing email functionality; This can be used to map multiple addresses that all point to the same mailbox.
If you don’t want to compromise the security settings of your Gmail account, check out Google’s documentation on how to obtain Python script credentials using the OAuth2 authorization model.
Instead of sending an email to a specified address, a pre-installed Python module drops and prints the contents to the console. Running a local debug server does not require you to encrypt messages or use credentials to access the email server.
Any email sent to this server will be dropped and displayed in the terminal window as bytes per line:
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For the rest of the tutorial, we’ll assume you’re using a Gmail account, but if you’re using an internal debugging server. Use with caution.
Use port 1025 instead of port 465 or 587 as your SMTP server. In addition, you do not need to use it
Before sending emails with HTML content and attachments; You will learn to send plain text messages using Python. These are emails that you can write in a simple text editor. There are no fancy things like text formatting or hyperlinks. You will find out about that later.
When you send email in Python; You must ensure that your SMTP connection is encrypted; So you should make sure that your message and login credentials are not easily obtained by others. SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are two protocols that can be used to encrypt SMTP connections. You don’t need to use either when using a local default server.
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Gmail will encrypt emails using TLS, as it is a secure alternative to SSL. Due to the security considerations of Python, it is highly recommended to use it.
From the ssl module it will load the trusted CA certificates, It will try to enable hostname checking and certificate verification and choose a reasonable secure protocol and encryption setting.
Smtplib is a built-in Python module for sending emails to any machine on the Internet with an SMTP or ESMTP listener daemon.
First of all, because it leads to a secure connection in the beginning, because it is more specific than a secure connection.
How To Send Emails Using Python: Tutorial With Examples
It verifies the host’s name and credentials and improves connection security. Enter your email address instead
It is not a safe practice to store your password in your email address, especially if you intend to share it with others. Instead, use it.
Allow the user to enter a password while running the script, as in the example above. If you don’t want your password to appear on your screen while typing, you can install and use the getpass module.
To create a secure relationship from the start; We can create a non-secure SMTP connection and use encryption.
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It covers the SMTP connection and gives you access to its methods. We recommend that you set your own SMTP server and port to start your script for easy configuration.
In the previous example we used To make sure your code doesn’t crash when something goes wrong; Enter your main password in one.
If necessary Therefore, if you want to check the extension of the SMTP service of the server, you do not need to use it.
After establishing a secure SMTP connection using the methods above, you can send it using your email.
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It is recommended that you set the email address and message at the top of your post after uploading so that you can easily change it to:
Text that appears in the email subject following newlines will be considered part of the message.
For comparison, here is a code example that sends secure text emails over an SMTP connection.
, etc.) or images, hyperlinks; Or HTML is very useful if you want to add responsive content. The most popular email formats today are MIME (Multipurpose Internet Mail Extensions); A multi-part email that combines HTML and plain text. MIME messages are handled by Python.
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Not all email clients display HTML content; Some people choose to receive plain text emails for security reasons, so it’s important to include plain text alternatives to HTML messages. Be sure to add the HTML message after the plain text version, as the email client will process the last multipart attachment first.
In this example, you first define the text and HTML messages as character strings; then save them;
Send the message to your secure email server connection. Email clients will try to render the last part first, so remember to add the HTML message after replacing the plain text.
Sending binary files to an email server designed to process text data requires encoding before sending. This is usually done using base64, which encodes binary data into printable ASCII characters.
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The message accepts parameters in RFC5233-format key/value pairs; stored in the dictionary and passed to the .add_header method of the message base class.
Imagine you want to send emails to your organization’s members to remind them to pay their taxes. Or you may want to send individual emails to students in your class with grades for their latest assignments. These functions are a breeze in Python.
The easiest place to start sending personalized bulk messages is to create a CSV (separated value) file containing the required personal information. (Be sure not to share personal information with others without permission.) A CSV file can be thought of as a simple table with column headers in the first row.
It is stored in the same file as my Python code. It contains the names of an imaginary group of people; Includes titles and standards. I used it
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It builds to ensure that all emails are sent to my personal mailbox, which is [email protected] in this example.
When creating a CSV file; Make sure your values are separated by commas with no surrounding spaces.
The code example below shows how to open a CSV file and navigate through the content lines (skipping the header row). Before sending the email to all contacts, make sure the code is correct. I published it
If the values in your CSV file contain spaces on one or both sides. You can remove them using
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Custom content can be added to the message by using str.format() to fill in the shoulder-wrapped placeholders. For example,
As of Python 3.6, though string formatting can be done elegantly using f-strings. They need to be preceded by the f-string itself. To set an email message at the beginning of the text, fill in the placeholders for each contact as you navigate through the CSV file. growing old
With that in mind, you can specify a general message with a possible placeholder.
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