I'm inserting emails with the API into my mailbox. Attachments work and do show up in the email itself. Usually in the inbox/message list view, there is an attachment paperclip symbol at the right end to indicate the message has an attachment (https://i.stack.imgur.com/TtiyC.png). But this doesn't seem to be working. My code to generate the email and insert it is below. Is this a limitation of the insert API or I'm not generating the email with attachment correctly?
from __future__ import print_function
import pickle
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
from base64 import urlsafe_b64encode
from email.mime.audio import MIMEAudio
from email.mime.base import MIMEBase
from email.mime.image import MIMEImage
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication
from email import encoders
import mimetypes
import os
from apiclient import errors
from urllib.error import HTTPError
import time
import datetime
import re
import random
SCOPES = ['https://www.googleapis.com/auth/gmail.insert']
creds = None
if os.path.exists('token.pickle'):
with open('token.pickle', 'rb') as token:
creds = pickle.load(token)
# If there are no (valid) credentials available, let the user log in.
if not creds or not creds.valid:
if creds and creds.expired and creds.refresh_token:
creds.refresh(Request())
else:
flow = InstalledAppFlow.from_client_secrets_file(
'credentials.json', SCOPES)
creds = flow.run_local_server(port=0)
# Save the credentials for the next run
with open('token.pickle', 'wb') as token:
pickle.dump(creds, token)
service = build('gmail', 'v1', credentials=creds)
message = MIMEMultipart('alternative')
part1 = MIMEText('just text', 'plain')
part2 = MIMEText('<b>html text<br><br>html text</b>', 'html')
message.attach(part1)
message.attach(part2)
filename = 'some.attachment'
part = MIMEApplication(open('/var/www/html/attachments/' + filename, 'rb').read())
part.add_header('Content-Disposition', f"attachment; filename=\"{filename}\"; size={os.path.getsize('/var/www/html/attachments/' + filename)}")
part.add_header('Content-Description', f"{filename}")
message.attach(part)
message['to'] = '"Some Body" <somebody@gmail.com>'
message['from'] = 'Some Other <from@email.com>'
message['subject'] = 'test email'
message['Content-Type'] = 'text/html; charset="utf-8"'
message['Content-Transfer-Encoding'] = 'base64'
encoded_message = urlsafe_b64encode(message.as_bytes())
temp = {'raw': encoded_message.decode(), 'labelIds': ['Some_Label', 'UNREAD']}
try:
message1 = service.users().messages().insert(userId='me', body=temp, internalDateSource='dateHeader').execute()
print(f"{message1['id']} / {message1['threadId']}/ {message1}")
except HTTPError as err:
print(err)
