add debug

backup_imap/backup_imap.py

@@ -106,13 +106,15 @@ class BackupImap:
             try:
                 search_response, search_data = self.imap.search('UTF-8', 'UNDELETED')
                 search_succeeded = True
-            except Exception as error:
-                imaplib._MAXLINE += 10000
-                self._log.debug(
-                    "Error searching mailbox, increasing maxline to %s. %s",
-                    imaplib._MAXLINE,
-                    error
-                )
+            except imaplib.IMAP4.error as error:
+                error_str = f"{error.__str__}"
+                if 'got more than' in error_str:
+                    imaplib._MAXLINE += 10000
+                    self._log.debug(
+                        "Error searching mailbox, increasing maxline to %s. %s",
+                        imaplib._MAXLINE,
+                        error
+                    )
         if search_response == 'OK':
             all_msgs_uids = search_data[0].split()
             self._log.debug(
@@ -179,6 +181,10 @@ class BackupImap:
                                     message_path,
                                     error
                                 )
+                    else:
+                        self._log.debug(
+                            "Skipping already backed up message"
+                        )
 
     def _backedup_message(self, message_id, mailbox):
         for message in self.data['backedup_messages']: