<p class="isSelectedEnd">Hi everyone,

<p class="isSelectedEnd">I have an MBOX file containing a large number of old emails, and I want to import them into my Gmail account. I&rsquo;m looking for a reliable way to do this without losing the original email dates, attachments, or folder structure.

<p class="isSelectedEnd">I came across the Thunderbird method, where you first import the MBOX file into Thunderbird and then copy the emails to Gmail through IMAP. It seems okay for a small MBOX file, but I&rsquo;m not sure how practical it is for larger files or multiple MBOX files.

<p class="isSelectedEnd">I&rsquo;ve also seen tools such as the SysTools IMAP Import Tool, which can import MBOX data directly into an IMAP account like Gmail. Has anyone here used it for a large MBOX-to-Gmail migration?

I&rsquo;d appreciate it if someone could share their experience or suggest the safest method for importing MBOX files into Gmail while keeping the email data intact.