我正在写一个程序，以垃圾邮件收件箱与大量的电子邮件一次。我正在尝试创建一个过滤器，以便删除这些电子邮件。到目前为止，我有以下代码，但只有在所有电子邮件发送后才能工作，并且在发送时不会删除它们。（这段代码来自https://www.thepythoncode.com/article/deleting-emails-in-python，我只是想添加到它上面）

import imaplib
import email
from email.header import decode_header

username = "testproject400@outlook.com"
password = "blank for a reason"

imap = imaplib.IMAP4_SSL("imap-mail.outlook.com")
imap.login(username, password)

imap.select("INBOX")

status, messages = imap.search(None, 'FROM "blank for a reason"')

messages = messages[0].split(b' ')
for mail in messages:
    msg = imap.fetch(mail, "(RFC822)")
    
    for response in msg:
        if isinstance(response, tuple):
            msg = email.message_from_bytes(response[1])

            subject = decode_header(msg["Subject"])[0][0]
            if isinstance(subject, bytes):

                subject = subject.decode()
            print("Deleting", subject)

    imap.store(mail, "+FLAGS", "\\Deleted")

imap.expunge()
imap.close()