SMTP mail in Python
I was writing a little bot in Python to automate some build handling – we have large builds that are stored remotely and, as our network is not as fast as it needed, the bot downloads them as they get available – and I wanted to integrate it with Microsoft Teams. One easy way available is to configure a team channel to receive e-mails, so I needed to send them from the Python bot.
Really thought it was gonna be harder, but Python already has a standard library smtplib[1] and it gets the job done.
import smtplib
server = smtplib.SMTP("smtp.office365.com", 587)
server.starttls()
server.login(USERNAME, PASSWORD)
server.sendmail(from_address, to_address, "Hello World")
server.quit()Where to_address will be something random that Teams created, like “123asdf@amer.teams.ms”.
This will get a message going, the content will be left empty though. So there’s a helper class on email standard library that can help fill the all the voids.
from email.message import EmailMessage
mail = EmailMessage()
mail['From'] = from_address
mail['To'] = to_address
mail['Subject'] = "Pictures from the party"
mail.set_content("Hello world!!")With the mail object in our hands we just need to change the sendmail line in the first snippet to:
server.send_message(mail)And we will have a fully functional mail sender in Python.