If you've been using Gmail for a decade or so, you're probably running into your storage limit. You can pay for more space, or you can simply delete old emails and make room.
Since 2013, Google has offered users 15 gigabytes of free storage. This space can be used for your Gmail, Google Drive files and Google Photo images. For many users like me, emails take up the bulk of this space.
Below is a 30-minute process I use about once a year to delete thousands of emails in bulk. I recently used this technique to delete about 18,000 emails from my inbox, freeing up about half a gigabyte. That's about 3 percent of the total storage Google offers.
Here's how to do it: