App engine mail

App Engine provides a built-in service for sending emails using the mail module. Here are some key features and examples:

Sending emails

To send an email using App Engine, you can use the mail module and create a Message object. Here's an example:

from google.appengine.api import mail

msg = mail.EmailMessage(sender='[email protected]',
                        to='[email protected]',
                        subject='Hello from App Engine',
                        body='This is a test email from App Engine.')

msg.send()

Configuring email settings

You can configure email settings in the App Engine console. Go to the "Settings" tab, then click on "Email" and enter your email settings:

From address: The email address that will be used as the sender's address.
Reply-to address: The email address that will be used as the reply-to address.
SMTP server: The SMTP server that will be used to send emails.

Using a custom domain

If you want to use a custom domain for your email, you'll need to set up a custom domain in the App Engine console. Go to the "Settings" tab, then click on "Custom domains" and add your custom domain.

Sending emails with attachments

You can send emails with attachments using the mail module. Here's an example:

from google.appengine.api import mail

msg = mail.EmailMessage(sender='[email protected]',
                        to='[email protected]',
                        subject='Hello from App Engine',
                        body='This is a test email from App Engine.')

attachment = mail.Attachment('path/to/attachment.txt', 'text/plain')
msg.attachments = [attachment]

msg.send()

Sending emails with HTML content

You can send emails with HTML content using the mail module. Here's an example:

from google.appengine.api import mail

msg = mail.EmailMessage(sender='[email protected]',
                        to='[email protected]',
                        subject='Hello from App Engine',
                        body='<html><body>This is a test email from App Engine.</body></html>')

msg.send()

Error handling

When sending emails using App Engine, you may encounter errors such as:

Email sending failed: This error occurs when the email sending process fails.
Email not delivered: This error occurs when the email is not delivered to the recipient's inbox.

To handle these errors, you can use try-except blocks and log the errors using the logging module.

Mail Knowledge

App engine mail