Python实例讲解 -- 接收邮件 (亲测)

1. 主要使用了 poplib 组件

    # -*- coding: utf-8 -*-  
      
    import poplib  
    from email import parser  
      
    host = 'pop.gmail.com'  
    username = '[email protected]'  
    password = '*******'  
      
    pop_conn = poplib.POP3_SSL(host)  
    pop_conn.user(username)  
    pop_conn.pass_(password)  
      
    #Get messages from server:  
    messages = [pop_conn.retr(i) for i in range(1, len(pop_conn.list()[1]) + 1)]  
      
    # Concat message pieces:  
    messages = ["\n".join(mssg[1]) for mssg in messages]  
      
    #Parse message intom an email object:  
    messages = [parser.Parser().parsestr(mssg) for mssg in messages]  
    for message in messages:  
        print message['Subject']  
    pop_conn.quit()  

优点： 可以输出内容
缺点： 只检测一次

2. 使用第三方插件 chilkat

# -*- coding: utf-8 -*-  
  
import sys  
import chilkat  
  
host = 'pop.gmail.com'  
username = '[email protected]'  
password = '******'  
  
# The mailman object is used for receiving (POP3)  
# and sending (SMTP) email.  
mailman = chilkat.CkMailMan()  
  
# Any string argument automatically begins the 30-day trial.  
success = mailman.UnlockComponent("30-day trial")  
if (success != True):  
    print "Component unlock failed"  
    sys.exit()  
  
# Set the GMail account POP3 properties.  
mailman.put_MailHost(host)  
mailman.put_PopUsername(username)  
mailman.put_PopPassword(password)  
mailman.put_PopSsl(True)  
mailman.put_MailPort(995)  
  
# Read mail headers and one line of the body.  
# To get the full emails, call CopyMail instead (no arguments)  
bundle = mailman.GetAllHeaders(1)  
  
if (bundle == None ):  
    print mailman.lastErrorText()  
    sys.exit()  
  
for i in range(0,bundle.get_MessageCount()):  
    email = bundle.GetEmail(i)  
  
    # Display the From email address and the subject.  
    print email.ck_from()  
    print email.subject() + "\n" 

安装见附件

主页：http://www.chilkatsoft.com/products.asp

安装：http://www.chilkatsoft.com/installPython27.asp

安装很简单，点击 showPythonPath.bat 测试一下环境，然后复制 _chilkat.pyd 和 chilkat.py 到 Python27\Lib\site-packages\ 下就可以

优点： 可以多次检测

缺点： 只可以看到来源和主题，无法看到内容

3. 检测邮件，返回未读数值

    def gmail_checker(username,password):  
            import imaplib,re  
            i=imaplib.IMAP4_SSL('pop.gmail.com')  
            try:  
                    i.login(username,password)  
                    x,y=i.status('INBOX','(MESSAGES UNSEEN)')  
                    messages=int(re.search('MESSAGES\s+(\d+)',y[0]).group(1))  
                    unseen=int(re.search('UNSEEN\s+(\d+)',y[0]).group(1))  
                    return (messages,unseen)  
            except:  
                    return False,0  
      
    # Use in your scripts as follows:  
      
    messages,unseen = gmail_checker('[email protected]','******')  
    print "%i messages, %i unseen" % (messages,unseen)  

4. 很好的返回主题和内容

    import imaplib  
    import email  
      
    def extract_body(payload):  
        if isinstance(payload,str):  
            return payload  
        else:  
            return '\n'.join([extract_body(part.get_payload()) for part in payload])  
      
    conn = imaplib.IMAP4_SSL("pop.gmail.com", 993)  
    conn.login("[email protected]", "******")  
    conn.select()  
    typ, data = conn.search(None, 'UNSEEN')  
    try:  
        for num in data[0].split():  
            typ, msg_data = conn.fetch(num, '(RFC822)')  
            for response_part in msg_data:  
                if isinstance(response_part, tuple):  
                    msg = email.message_from_string(response_part[1])  
                    subject=msg['subject']                     
                    print(subject)  
                    payload=msg.get_payload()  
                    body=extract_body(payload)  
                    print(body)  
            typ, response = conn.store(num, '+FLAGS', r'(\Seen)')  
    finally:  
        try:  
            conn.close()  
        except:  
            pass  
        conn.logout()  

参考： http://www.doughellmann.com/PyMOTW/imaplib/