Python使用POP3读取邮箱中的邮件，含文本及附件

读取邮件列表

import poplib
import email
from email.parser import Parser

def receive_email_pop3(address, password):
    # 防止报错: poplib.error_proto: line too long
    poplib._MAXLINE = 1024 * 1024
    pop3 = poplib.POP3('imap.exmail.qq.com', 110)
    # pop3 = poplib.POP3_SSL('imap.exmail.qq.com', 995)
    pop3.user(address)
    pop3.pass_(password)

    # 获取一些统计信息
    emailMsgNum, emailSize = pop3.stat()
    print 'Email number is %d and size is %d' % (emailMsgNum, emailSize)

    # 遍历邮件，并打印出每封邮件的标题
    for i in range(emailMsgNum):
        for piece in pop3.retr(i + 1)[1]:
            # print piece
            if piece.startswith('Subject'):
                print piece
                break

    # Get messages from server:
    # 获得邮件
    messages = [pop3.retr(i) for i in range(1, len(pop3.list()[1]) + 1)]
    # print messages

    # Concat message pieces:
    messages = ["\n".join(msg[1]) for msg in messages]
    # print messages

    # Parse message intom an email object:
    # 分析
    # 'LazyImporter' object is not callable
    # https://stackoverflow.com/questions/34348069/typeerror-lazyimporter-object-is-not-callable
    # messages = [parser.Parser().parsestr(mssg) for mssg in messages]
    messages = [Parser().parsestr(msg) for msg in messages]
    i = 0
    for index in range(0, len(messages)):
        message = messages[index]
        i = i + 1
        subject = message.get('subject')
        print subject
        # h = email.Header(subject)
        # dh = email.Header.decode_header(h)
        # subject = unicode(dh[0][0], dh[0][1]).encode('utf8')
        mailName = "mail%d.%s" % (i, subject)
        f = open('%d.log' % (i), 'w')
        print >> f, "Date: ", message["Date"]
        print >> f, "From: ", email.utils.parseaddr(message.get('from'))[1]
        print >> f, "To: ", email.utils.parseaddr(message.get('to'))[1]
        print >> f, "Subject: ", subject
        print >> f, "Data: "
        j = 0
        for part in message.walk():
            j = j + 1
            fileName = part.get_filename()
            contentType = part.get_content_type()
            contentCharset = part.get_content_charset()
            # 保存附件
            if fileName:
                data = part.get_payload(decode=True)
                h = email.Header.Header(fileName)
                dh = email.Header.decode_header(h)
                fname = dh[0][0]
                encodeStr = dh[0][1]
                if encodeStr != None:
                    fname = fname.decode(encodeStr, contentCharset)
                    # end if
                fEx = open("%s" % (fname), 'wb')
                fEx.write(data)
                fEx.close()
            elif contentType == 'text/plain' or contentType == 'text/html':  # or contentType == 'text/html':
                # 保存正文
                data = part.get_payload(decode=True)
                email_content = str(data).decode(contentCharset).encode("utf-8")
                print >> f, data
                # end if
            # end for
        f.close()
        # end for

    pop3.quit()

读取最新邮件

import poplib
import email
from email.parser import Parser

class EmailLib():

    def __init__(self):
        self.pop3_server = 'imap.exmail.qq.com'
        self.pop3_port = 110
        self.pop3_ssl = False
        pass

    def receive_email_pop3(self, address, password):
        # 防止报错: poplib.error_proto: line too long
        poplib._MAXLINE = 1024 * 1024
        if self.pop3_ssl:
            pop3 = poplib.POP3_SSL(self.pop3_server, self.pop3_port)
        else:
            pop3 = poplib.POP3(self.pop3_server, self.pop3_port)
        pop3.user(address)
        pop3.pass_(password)

        # 获取一些统计信息
        emailMsgNum, emailSize = pop3.stat()
        print 'Email number is %d and size is %d' % (emailMsgNum, emailSize)

        # Get messages from server:
        # 获得邮件
        messages = [pop3.retr(i) for i in range(1, len(pop3.list()[1]) + 1)]

        # Concat message pieces:
        messages = ["\n".join(msg[1]) for msg in messages]
        messages = [Parser().parsestr(msg) for msg in messages]

        # 遍历邮件，并打印出每封邮件的标题
        email_from = ''
        email_to = ''
        email_subject = ''
        email_content = ''
        email_date = ''
        for i in range(emailMsgNum-1, -1, -1):
            print '正在查询第 %d 封邮件' % (emailMsgNum-i)
            message = messages[i]
            email_subject = message.get('subject')
            email_date = message["Date"]
            email_from = email.utils.parseaddr(message.get('from'))[1]
            email_to = email.utils.parseaddr(message.get('to'))[1]
            for part in message.walk():
                contentType = part.get_content_type()
                contentCharset = part.get_content_charset()
                if contentType == 'text/plain' or contentType == 'text/html':
                    # 保存正文
                    data = part.get_payload(decode=True)
                    email_content = str(data).decode(contentCharset).encode("utf-8")
                    # end if
            # end for
            if 'Apollo@lianlianpayglobal.com' in email_from:
                break

        # print email_from
        # print email_to
        # print email_subject
        # print email_date
        # print email_content

        pop3.quit()
        ret_email = {}
        ret_email['from'] = email_from
        ret_email['to'] = email_to
        ret_email['subject'] = email_subject
        ret_email['date'] = email_date
        ret_email['content'] = email_content
        print '邮件主题：' + email_subject
        print '邮件内容：' + email_content
        return ret_email