If you want Gmail Backup software for secure backup of Google email accounts. Then I can suggest a tool because I'm also using it, so you can try it. The best solution is the TrustVare IMAP Backup Tool, which allows users to safely download and save their Gmail emails on a local system. This software works by connecting to your Gmail account via IMAP and lets you backup complete mailbox data, including the Inbox, Sent, Drafts, and attachments. It supports multiple file formats such as PST, MBOX, EML, MSG, and PDF. The tool also preserves email structure, metadata, and folder hierarchy during the process. The software is compatible with all Windows OS versions like 11, 10, 8.1, 8, and 7, without downloading any application. You don't need technical skills to operate it and you can use the free versions before using this tool.