我如何在特定时间段内收到电子邮件?

How do I get email for a certain period?

有一个表格 (pyqt5),我从中获取日期:

 def buttonclicked(self):
    since = self.Since.text()

然后我把它放在这里:

 result, data = mail.search(None, '(SINCE {since} )'.format(since=since))

错误是:

b'[CANNOT] Unsupported search criterion: SINCE 10-09-2019 '

日期需要符合以下格式:

imap.search(None, '(SINCE 10-Sep-2019)')

SEARCH BEFORE/AFTER with Pythons imaplib