Add fileinto to sieve

imap_filter/imap_filter.py

@@ -146,6 +146,7 @@ class ImapFilter:
                 content = sieve_script.read()
         else:
             content = '# Managed by imap_filter. Some lines might get replaced if the match with rule name from imap_filter'
+            content += 'require ["fileinto"];'
         for mfilter in filters:
             self._log.debug(
                 'Adding filter %s to sieve script',