From d3ebe125eef19d93dd4fd8a53a2af64ae4be3e88 Mon Sep 17 00:00:00 2001
From: "Antonio J. Delgado" <ad@susurrando.com>
Date: Fri, 28 Mar 2025 10:37:20 +0200
Subject: [PATCH] add comment

---
 backup_imap/backup_imap.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/backup_imap/backup_imap.py b/backup_imap/backup_imap.py
index 570f3fa..45c3d7c 100644
--- a/backup_imap/backup_imap.py
+++ b/backup_imap/backup_imap.py
@@ -100,6 +100,7 @@ class BackupImap:
         if not os.path.exists(mailbox_path):
             os.mkdir(mailbox_path)
         current = time.gmtime()
+        # One year at a time because big mailboxes will take all memory due to Python IMAP library memory handling
         for year in range(current.tm_year-10, current.tm_year+1):
             search_response, search_data = self.imap.search('UTF-8', f'(BEFORE "1-Jan-{year}")')
             if search_response == 'OK':