Send Email From Python Gmail

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Send Email From Python Gmail – Sending personal emails using Python is not very secure, but it is also sometimes valuable for some use cases. Gmail allows the user to send emails using Gmail account and password directly in Python. However, this method was recently removed due to serious security vulnerabilities.

In this blog post, I want to quickly discuss how to send emails using Python and Gmail these days.

Send Email From Python Gmail

Send Email From Python Gmail

Previously, we could only use Gmail account and password for Gmail SMTP login in Python if “Allow Less Secure Apps” is enabled and Google Account 2-Step Verification is disabled for Google Account. However, it is extremely insecure because if someone gets the password, they can easily change it and the user will lose the account forever. Even though the Google account is “disposable” for the user, it sometimes confuses Gmail recipients that the Gmail sender address has changed because the previous one was stolen.

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Starting May 30, 2022, “Allow less secure apps ON” will no longer be allowed for any Google account. Therefore, the previous Gmail authentication method in Python no longer works.

Google encourages users to use the Gmail API to manage emails. However, the authentication setting process and verification process are complicated. Credential settings are stored in the application system environment, the application is deployed in a new environment, a manual authentication process is required. As a result, the application cannot be deployed in the cloud.

However, there is another hidden method for Gmail authentication in Python, which is to set the password in the app while the Google account 2-Step Verification is enabled. App passwords let you sign in to your Google account from apps on devices that don’t support 2-Step Verification. Not very safe. That’s probably why Google doesn’t favor it. However, it’s not very secure in the way that someone can use your Gmail account to send emails for you if they get your app password, but they can’t change your Google account password without their knowledge. The owner of the Google account can change or remove the password of the app at any time if they find that the Gmail account has been hacked.

After setting up 2-step verification and app password for Google account, Google account security will be like this.

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In the Python script, instead of the Google account password, we use the app password for Gmail SMTP authentication.Watch Now This tutorial has a related video course created by the Real Python team. Check it out with this written tutorial to deepen your understanding: Sending Emails with Python

You probably found this tutorial because you want to send emails using Python. You can receive email reminders of your code, send a confirmation email to users when they create an account, or send an email to members of your organization reminding them to pay their dues. Sending emails manually is a time-consuming and error-prone task, but it’s easy to automate with Python.

You will find some transactional email services at the end of this tutorial, which will come in handy if you need to send a lot of emails.

Send Email From Python Gmail

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Send An Email Using Python And Gmail

Uses the RFC 821 protocol for SMTP. The examples in this tutorial use the Gmail SMTP server to send emails, but the same principles apply to other email services. While most email providers use the same connection ports as in this tutorial, you can do a quick Google search to confirm yours.

To start this tutorial, set up a Gmail account for development or set up an SMTP debugging server that will delete the emails you send and print at the command prompt. Both options are listed below for you. A local SMTP debugging server can be useful to troubleshoot any email functionality issues and ensure that your email function is error-free before sending emails.

If you decide to use a Gmail account to send your emails, I recommend creating a functional account for your code development. This is because you need to adjust the security settings of your Gmail account to allow access from within your Python code, and there is a chance that you will accidentally expose your credentials. I also noticed that my test account’s inbox quickly filled up with test emails, which was reason enough to create a new Gmail account for development.

. When testing the email functionality, you can use it to simulate multiple addresses that all point to the same inbox.

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If you don’t want to lower your Gmail account’s security settings, see Google’s documentation on how to obtain access credentials for your Python script using the OAuth2 authorization framework.

Module pre-installed with Python. Instead of sending emails to the specified address, they are deleted and their content is printed on the console. Running a local debug server means there’s no need to encrypt messages or use credentials to log into an email server.

All emails sent through this server will be discarded and displayed in the terminal window as a bytes object for each line:

Send Email From Python Gmail

For the rest of the tutorial, I’ll assume you’re using a Gmail account, but if you’re using a local debug server, make sure to

Sending Emails In Python — Tutorial With Code Examples

As your SMTP server and use port 1025 instead of port 465 or 587. Additionally, you cannot

Before we get into sending emails with HTML content and attachments, learn how to send plain text emails using Python. These are emails that you can write in a simple text editor. No fancy things like text formatting or hyperlinks. You will find out about that later.

When sending emails through Python, make sure that your SMTP connection is encrypted so that your message and credentials cannot be easily accessed by others. SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are two protocols that can be used to encrypt the SMTP connection. There is no need to use any of these when using a local debugging server.

In both cases, Gmail encrypts emails using TLS, as it is the more secure successor to SSL. According to Python security considerations, it is recommended to use

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In the ssl module. This will load trusted CA certificates into the system, enable hostname checking and certificate validation, and attempt to select reasonably secure protocol and encryption settings.

Smtplib is Python’s built-in module for sending emails to any Internet machine with an SMTP or ESMTP listener daemon.

First because it establishes a connection that is secure from the beginning and is shorter than the

Send Email From Python Gmail

Verifies the host name and its certificates and optimizes connection security. Be sure to enter your own email address instead

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It is not safe to hide your email password in your code, especially if you plan to share it with others. Use instead

To allow the user to type in their password when running the script, as in the example above. If you don’t want your password to be displayed on your screen when you type it, you can import and use the getpass module

To establish a secure connection from the beginning, we can create a non-secure SMTP connection and encrypt it

, which contains the SMTP connection and gives you access to its methods. I recommend defining your SMTP server and port at the beginning of your script for easy configuration.

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Which we used in the previous example. To make sure your code doesn’t crash if something happens, put your main code in a

If needed, so unless you want to check the server’s SMTP service extensions, it shouldn’t be used

After establishing a secure SMTP connection using one of the methods above, you can send your email using

Send Email From Python Gmail

I recommend explaining the email addresses and message content at the top of your script, after importing, so you can change them easily:

How To Send Gmail With Python Step By Step Guide

Appears as the subject of the email and the text after the newlines is considered the body of the message.

For comparison, here is a code sample that sends a plain text email over a secure SMTP connection

, etc.), or if you want to add images, hyperlinks, or responsive content, HTML is very useful. The most common type of email today is MIME (Multipurpose Internet Mail Extensions) Multipart email, which combines HTML and plain text. MIME messages are handled by Python

Since not all email clients display HTML content by default, and some people choose to receive plain text emails only for security reasons, it is important to include an alternative to simple which are text HTML messages. Since the email client displays the latest multi-part attachment first, be sure to add the HTML message after the plain text version.

Sending Emails With Python: Quick And Easy Guide

In this example, you first define the plain text and HTML message as string literals and then save them

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