163 邮件清理

由于163有封数限制,所以要进行自动清理

#!/usr/bin/python
#-*- encoding: utf-8 -*-  
import imaplib
import time
host = 'imap.qiye.163.com'  
username = '账号'
password = "密码"
debug=1
#保留的邮件封数和一次删除邮件的封数
mail_num=1000
conn = imaplib.IMAP4_SSL("imap.qiye.163.com",993)
conn.login(username,password)
print(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))
if conn.list("")[0] == 'OK':
    for i in conn.list("")[1]:
        #获取邮箱列表
        mailbox_name=i.replace('"','').split(' ')[2]
        print(mailbox_name)
        print(conn.select(mailbox_name))
        #发现有时候一次删除不干净多清除几次,直到邮件封数等于小于1000封
        while int(conn.select(mailbox_name)[1][0]) > mail_num:
            mailbox_num_status=conn.select(mailbox_name)
            #邮件封数
            print(mailbox_num_status)
            #邮件数大于1000执行
            if mailbox_num_status[0] == 'OK' and int(mailbox_num_status[1][0]) > mail_num:
                
                #获取所有邮件
                mailbox_type,mailbox_data=conn.search(None, 'ALL')
    
                #获取大于1000封的的邮件删除
                mail_id=[]
                #获取id
                msgList = sorted(mailbox_data[0].split())
                #循环总数
                for_num=1
                #临时存储
                tmp=[]
                #计算循环次数大于1000则把tmp数据加入到mail_id
                num=0
                for i in msgList:
                    tmp.append(i)
                    num+=1
                    for_num+=1
                    if num >= mail_num:
                        num=0
                        mail_id.append(tmp)
                        tmp=[]
                        for_num+=1
                    elif for_num >=int(len(msgList)-mail_num):
                        #print(for_num)
                        mail_id.append(tmp)
                        break
                    
                #删除邮件
                for i in mail_id:
                    #print(",".join(i))
                    if i != '':
                        #标记删除
                        conn.store(",".join(i), '+FLAGS', '\Deleted')
                #执行删除重置id
                conn.expunge()
    conn.logout()
            
else:
    print("Error login")