From 1f04a016a3505b5698979d2ace536bcb81b5aa77 Mon Sep 17 00:00:00 2001
From: "Antonio J. Delgado" <ad@susurrando.com>
Date: Thu, 27 Mar 2025 07:36:34 +0200
Subject: [PATCH] handle maxline

---
 backup_imap/backup_imap.py | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/backup_imap/backup_imap.py b/backup_imap/backup_imap.py
index bcacac5..1baa573 100644
--- a/backup_imap/backup_imap.py
+++ b/backup_imap/backup_imap.py
@@ -101,7 +101,18 @@ class BackupImap:
             os.mkdir(os.path.dirname(mailbox_path))
         if not os.path.exists(mailbox_path):
             os.mkdir(mailbox_path)
-        search_response, search_data = self.imap.search('UTF-8', 'UNDELETED')
+        search_succeeded = False
+        while not search_succeeded:
+            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
+                )
         if search_response == 'OK':
             all_msgs_uids = search_data[0].split()
             self._log.debug(