gmail_from_and_returnpath_headers.py

gmail_from_and_returnpath_headers.py

import email
import collections
import imaplib

mail = imaplib.IMAP4_SSL('imap.gmail.com')
mail.login('EMAIL_ADDRESS@gmail.com', 'PASSWORD')
mail.list()
mail.select('inbox')

from_dict = collections.Counter()
return_path_dict = collections.Counter()
typ, data = mail.search(None, 'ALL')
for num in data[0].split():
    typ, data = mail.fetch(num, '(RFC822)')
    msg = email.message_from_string(data[0][1].decode('ISO-8859-1'))
    try:
        from_header = email.header.decode_header(msg['From'])[0][0].lower().split('<')[-1].strip('>')
    except TypeError as e:
        from_header = email.header.decode_header(msg['From'])[0][0].lower().decode()
    print(from_header)
    try:
        return_path_header = email.header.decode_header(msg['Return-Path'])[0][0].lower().split('<')[-1].strip('>')
        print(return_path_header)
        from_dict.update([from_header])
        return_path_dict.update([return_path_header])
    except TypeError:
        print('----------')
        print('NO RETURN-PATH FOUND!')
        print('----------')
    print()
print(from_dict)
print(return_path_dict)

mail.close()
mail.logout()