Read Emails in Python using POP3 or IMAP | https://blog.aspose.com/2021/06/04/read-emails-in-python-using-pop3-or-imap/

read-email-IMAP.py

# connect to mail server using IMAP
client = ImapClient("imap.gmail.com", 993, "username", "password")

# select folder
client.select_folder("Inbox")

# loop through email messages and save them as .eml files
for msg in client.list_messages():
    print("Subject: " + msg.subject)
    print("HtmlBody: " + msg.html_body)
    print("TextBody: " + msg.body)
    client.save_message(msg.unique_id, msg.unique_id + "_out.eml")

read-email-POP3.py

# create POP3 client
client = Pop3Client("pop.gmail.com", 995, "username", "password")

# set security options
client.security_options = SecurityOptions.AUTO

# get message count
messageCount = client.get_message_count()
print("Total messages: " + str(messageCount))

# create an instance of the MailMessage class to read message    
for i in range(0,messageCount):
    message = client.fetch_message(i+1)
    print("From:" + str(message.from_address))
    print("Subject:" + message.subject)
    print(message.html_body)

Read the complete article: https://blog.aspose.com/2021/06/04/read-emails-in-python-using-pop3-or-imap/