To back up Gmail emails with attachments, you should use
eSoftTools Gmail Backup software because, with this software, you can back up your emails in a straightforward process in just a few minutes. With the help of this software, you can backup Gmail emails in multiple formats like PST, EML, EMLX, HTML, PDF, and other formats. You can also try the free demo of this software, from which you can download 20 emails from all your mail folders for free.
Read more:- Backup Gmail Emails with attachments