好消息:你是对的......你不需要拉下 RFC822。这message_parts
参数为fetch()
让你变得相当细粒度。
这是如何仅获取标头的简单示例:
import imaplib
from email.parser import HeaderParser
conn = imaplib.IMAP4('my.host.com')
conn.login('[email protected] /cdn-cgi/l/email-protection', 'mypassword')
conn.select()
conn.search(None, 'ALL') # returns a nice list of messages...
# let's say I pick #1 from this
data = conn.fetch(1, '(BODY[HEADER])')
# gloss over data structure of return... I assume you know these
# gives something like:
# ('OK', [(1 (BODY[HEADER] {1662', 'Received: etc....')])
header_data = data[1][0][1]
parser = HeaderParser()
msg = parser.parsestr(header_data)
<email.message.Message instance at 0x2a>
print msg.keys()
['Received', 'Received', 'Received', 'Cc', 'Message-Id', 'From', 'To',
'In-Reply-To', 'Content-Type', 'Content-Transfer-Encoding', 'Mime-Version',
'Subject', 'Date', 'References', 'X-Mailer',
'X-yoursite-MailScanner-Information',
'X-yoursite-MailScanner', 'X-yoursite-MailScanner-From', 'Return-Path',
'X-OriginalArrivalTime']
可以作为第二个参数传递的消息部分的完整列表fetch
在 IMAP4 规范中:https://www.rfc-editor.org/rfc/rfc1730#section-6.4.5 https://www.rfc-editor.org/rfc/rfc1730#section-6.4.5