Imaplib, How to set a condition for searching letters by date?

Question

Python

From the input form (pyqt) I get the date

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

Then I substitute this date in the search query:

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

Gives this error

b'[CANNOT] Unsupported search criterion: SINCE 10.05.2019

Answer 1

According to https://tools.ietf.org/html/rfc3501 the date should be in the format 10-05-2019