如何从Gmail附件下载所有电子邮件?

问题:

如何连接到Gmail并确定哪些邮件具有附件?然后我想下载每个附件,在处理它时打印出每个消息的Subject:和From:。

回答:

硬一个:-)

import email, getpass, imaplib, os

detach_dir = '.' # directory where to save attachments (default: current)
user = raw_input("Enter your GMail username:")
pwd = getpass.getpass("Enter your password: ")

# connecting to the gmail imap server
m = imaplib.IMAP4_SSL("imap.gmail.com")
m.login(user,pwd)
m.select("[Gmail]/All Mail") # here you a can choose a mail box like INBOX instead
# use m.list() to get all the mailboxes

resp, items = m.search(None, "ALL") # you could filter using the IMAP rules here (check http://www.example-code.com/csharp/imap-search-critera.asp)
items = items[0].split() # getting the mails id

for emailid in items:
    resp, data = m.fetch(emailid, "(RFC822)") # fetching the mail, "`(RFC822)`" means "get the whole stuff", but you can ask for headers only, etc
    email_body = data[0][1] # getting the mail content
    mail = email.message_from_string(email_body) # parsing the mail content to get a mail object

    #Check if any attachments at all
    if mail.get_content_maintype() != 'multipart':
        continue

    print "["+mail["From"]+"] :" + mail["Subject"]

    # we use walk to create a generator so we can iterate on the parts and forget about the recursive headach
    for part in mail.walk():
        # multipart are just containers, so we skip them
        if part.get_content_maintype() == 'multipart':
            continue

        # is this part an attachment ?
        if part.get('Content-Disposition') is None:
            continue

        filename = part.get_filename()
        counter = 1

        # if there is no filename, we create one with a counter to avoid duplicates
        if not filename:
            filename = 'part-%03d%s' % (counter, 'bin')
            counter += 1

        att_path = os.path.join(detach_dir, filename)

        #Check if its already there
        if not os.path.isfile(att_path) :
            # finally write the stuff
            fp = open(att_path, 'wb')
            fp.write(part.get_payload(decode=True))
            fp.close()

Wowww!那是什么;-)但是在Java中尝试一样,只是为了好玩!
顺便说一下,我测试了一个shell,所以有些错误可能会保留下来。
请享用
 编辑:
因为邮箱名称可以从一个国家更改为另一个国家,我建议在m.select("the mailbox name")之前m.list()并选择一个项目,以避免此错误:

imaplib.error:命令SEARCH在状态为AUTH非法,只允许在状态SELECTED

 
 
Code问答: http://codewenda.com/topics/python/
Stackoverflow: How can I download all emails with attachments from Gmail?

*转载请注明本文链接以及stackoverflow的英文链接

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