使用IMAPClient如何查看发件人地址？

Question

使用IMAPClient如何查看邮件正文和发件人电子邮件地址？

server = IMAPClient(imap_server, use_uid=True, ssl=ssl)
server.login(imap_user, imap_password)

print 'login successful'

select_info = server.select_folder('INBOX')
print '%d messages in INBOX' % select_info['EXISTS']

messages = server.search(['NOT DELETED'])
print "%d messages that aren't deleted" % len(messages)

print
print "Messages:"
response = server.fetch(messages, ['FLAGS', 'RFC822.SIZE'])
for msgid, data in response.iteritems():
    print '   ID %d: %d bytes, flags=%s' % (msgid,
                                            data['RFC822.SIZE'],
                                            data['FLAGS'])

Answer 1

虽然IMAPClient比使用容易得多imaplib,但了解IMAP协议仍然很有用

(注意,我选择了一个随意的单个电子邮件ID)

您可以通过以下方式获取FROM:

server.fetch([456], ['BODY[HEADER.FIELDS (FROM)]'])
# {456: {'BODY[HEADER.FIELDS (FROM)]': 'From: Facebook <register+mr4k25sa@facebookmail.com>\r\n\r\n', 'SEQ': 456}}

和身体通过:

server.fetch([456], ['BODY[TEXT]'])
# {456: {'BODY[TEXT]': "Hey Jon,\r\n\r\nYou recently entered a new contact email [snip]", 'SEQ': 456}}

但是,通常更容易做到:

import email
m = server.fetch([456], ['RFC822'])
msg = email.message_from_string(m[456]['RFC822'])
print msg['from']
# Facebook <register+mr4k25sa@facebookmail.com>
from email.utils import parseaddr
print parseaddr(msg['from'])
# ('Facebook', 'register+mr4k25sa@facebookmail.com')
print msg.get_payload()
# content of email...

只是要警惕有效载荷包含附件的位置或多部分...