1 POP and IMAP - Post Office Protocol and Internet Message Access Protocol
2
3 用来从 SMTP Server 上下载邮件的协议.
4
5 POP - The Post Office Protocol
6 通过 poplib 链接服务器,
7 例子,
8 import sys
9 import poplib, email
10 host = ''
11 userid = 'userid'
12 PW = 'PW'
13 storedir = '' # email stored directory(the mailbox)
14 P = poplib.POP3(host)
15 try:
16 P.user(userid)
17 P.pass_(PW)
18 except poplib.error_proto as e:
19 print("Login failed: ", e)
20 sys.exit()
21
22 maillist = P.list()[1] # the list of message in the mailbox
23 print(" %d mails." % len(maillist))
24 dellist = []
25
26 for item in maillist: # email download
27 number, octets = item.split(' ')
28 print("Start downloading mail %s (%S Bytes)" % (number, octets))
29 lines = P.retr(number)[1] # retrieve the 'number'th email
30 msg = email.message_from_string("\n".join(lines)) # email object
31 with open(storedir) as FH:
32 FH.write(msg.as_string(unixfrom=1) + "\n")
33 dellist.append(number)
34 print("Downloaded mail %s (%S Bytes)" % (number, octets))
35
36 counter = 0
37 for num in dellist: # delete email
38 counter += 1
39 print("Deleting mail %d of %d" %(counter, len(dellist)))
40 P.dele(number) # delete mail
41
42 print("%d emails were deleted from server" % counter)
43 P.quit() # logout from server
44
45 IMAP - Internet Message Access Protocol
46 相比于 POP 协议 IMAP 更加完善,且功能更加强大
47 例子, opens a mailbox and retrieves and prints all messages:
48
49 import getpass, imaplib
50 M = imaplib.IMAP4()
51 M.login(getpass.getuser(), getpass.getpass())
52 M.select()
53 typ, data = M.search(None, 'ALL')
54 for num in data[0].split():
55 typ, data = M.fetch(num, '(RFC822)')
56 print('Message %s\n%s\n' % (num, data[0][1]))
57 M.close()
58 M.logout()
59
60 Reference,
61 python doc,
62 https://docs.python.org/3/library/imaplib.html
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