import urllib.request, tempfile, smtplib, email, time
from datetime import datetime, timedelta


tmpdir = tempfile.TemporaryDirectory() 


from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.image import MIMEImage

# Define these once; use them twice!
strFrom = 'pv-tannenstr@web.de'
strTo = ["tobias.siegel@outlook.com", "wsiegel@web.de"]

# Create the root message and fill in the from, to, and subject headers
msgRoot = MIMEMultipart('related')
msgRoot['Subject'] = 'Darmstadt Neustart RPI'
msgRoot['From'] = strFrom
msgRoot['To'] = ",".join(strTo)
msgRoot.preamble = 'This is a multi-part message in MIME format.'

# Encapsulate the plain and HTML versions of the message body in an
# 'alternative' part, so message agents can decide which they want to display.
msgAlternative = MIMEMultipart('alternative')
msgRoot.attach(msgAlternative)

msgText = MIMEText('')
msgAlternative.attach(msgText)


# Send the email (this example assumes SMTP authentication is required)
import smtplib, ssl
context = ssl.create_default_context()
with smtplib.SMTP('smtp.web.de', 587) as server:
    server.ehlo()  # Can be omitted
    server.starttls(context=context)
    server.ehlo()  # Can be omitted
    server.login(strFrom, 'PV-Tannenstr')
    server.sendmail(strFrom, strTo, msgRoot.as_string())

tmpdir.cleanup()