POP and IMAP - Post Office Protocol and Internet Message Access Protocol

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 1 POP and IMAP - Post Office Protocol and Internet Message Access Protocol 2  3 用來從 SMTP Server 上下載郵件的協議. 4  5     POP - The Post Office Protocol 6         通過 poplib 連結的伺服器, 7         例子, 8             import sys 9             import poplib, email10             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 mailbox23             print(" %d mails." % len(maillist))24             dellist = []25 26             for item in maillist:   # email download27                 number, octets = item.split(‘ ‘)28                 print("Start downloading mail %s (%S Bytes)" % (number, octets))29                 lines = P.retr(number)[1]  # retrieve the ‘number‘th email30                 msg = email.message_from_string("\n".join(lines)) #  email object31                 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 = 037             for num in dellist:   # delete email38                 counter += 139                 print("Deleting mail %d of %d" %(counter, len(dellist)))40                 P.dele(number) # delete mail41 42             print("%d emails were deleted from server" % counter)43             P.quit() # logout from server44 45     IMAP - Internet Message Access Protocol46         相比於 POP 協議  IMAP 更加完善,且功能更加強大47         例子, opens a mailbox and retrieves and prints all messages:48 49             import getpass, imaplib50             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

 

POP and IMAP - Post Office Protocol and Internet Message Access Protocol