Not connecting to iCloud IMAP mailbox

[williamy2k]

Hello, unfortunately I'm having issues connecting to an iCloud IMAP mailbox

from redbox import EmailBox
from pprint import pprint
import os
import dotenv

dotenv.load_dotenv()

imap_host = os.getenv('imap_host')
imap_user = os.getenv('imap_user')
imap_pass = os.getenv('imap_pass')

box = EmailBox(
    host=imap_host,
    port=993,
    username=imap_user,
    password=imap_pass
)

inbox = box["INBOX"]

for msg in inbox.search(subject='Your Backup Summary'):
    pprint(msg.from_)
    pprint(msg.to)
    pprint(msg.subject)
    pprint(msg.text_body)
    pprint(msg.html_body)

Error message:

Traceback (most recent call last):
  File "/Users/[Redacted]/check_for_code.py", line 19, in <module>
    inbox = box["INBOX"]
  File "/Users/[Redacted]/venv/lib/python3.9/site-packages/redbox/box.py", line 37, in __getitem__
    for mailbox in self.mailfolders:
  File "/Users/[Redacted]/venv/lib/python3.9/site-packages/redbox/box.py", line 45, in mailfolders
    self.update()
  File "/Users/[Redacted]/venv/lib/python3.9/site-packages/redbox/box.py", line 83, in update
    items = match.groupdict()
AttributeError: 'NoneType' object has no attribute 'groupdict'

I tried some debugging, but can't see any obvious issue beyond '_connection': None

pprint(box.__dict__)

Output:

{'_EmailBox__password': [Redacted],
 '_connection': None,
 '_mailfolders': None,
 'cls_imap': <class 'imaplib.IMAP4_SSL'>,
 'host': 'imap.mail.me.com',
 'kws_imap': {},
 'port': 993,
 'use_starttls': False,
 'username': [Redacted]}

Other notes

• I tried setting use_starttls=True but this didn't resolve