python smtp quick reference

smtp.py

# work in progress. I'm not 100% sure on distinction between legacy compat32 api and new API yet, so grain of salt and all.


import email

# __init__ is empty in email.mime so you need to import specific files/modules.
import email.mime.multipart


# use this for creating a message from scratch. You'll need to add all headers and parts etc.
# appears to be an email.message.Message, as it has all of those functions, though type is email.mime.multipart.MIMEMultipart
msg = email.mime.multipart.MIMEMultipart()

# email.message.Message:
# https://docs.python.org/3/library/email.compat32-message.html#compat32-message

# email.message.EmailMessage: 
# https://docs.python.org/3/library/email.message.html#email.message.EmailMessage



# to read from a file: 
p = email.parser.Parser()

with open(email_file, 'r') as f:
  # this is also an email.message.Message
    m = p.parse(f)


# sending:
import smtplib

# just try connecting, should show 250 ok
with smtplib.SMTP("pfx.delivio.us") as smtp:
    print(smtp.noop())


# ref: http://pymotw.com/2/smtplib/

# smtp.sendmail(...)  msg is an ascii string, or a byte string
# smtp.send_message(...) similar, but msg is an email.message.Message

# https://docs.python.org/3/library/smtplib.html#smtplib.SMTP.sendmail
# https://docs.python.org/3/library/smtplib.html#smtplib.SMTP.send_message

# note you'll need to do your own mx lookup
with smtplib.SMTP(mx) as smtp:
    r = smtp.send_message(msg=m)