THIS is how you can clean up and save Gmail storage space

Gmail is the most popular service for emails with more than a billion users. But what happens if your mailbox gets full. With Google Photos' unlimited free storage offer ending this month, it is important to clear up Gmail and delete all those thousands of unread emails. 

That's because Gmail storage is counted toward the free 15GB of storage one gets with every Google account. This 15GB free storage is allotted across Gmail, Google Photos, Google Drive, and other Google services. 

So, if you clean up your Gmail storage, then you will automatically get more space for Google Photos. 

Delete Mails

Open Gmail and type "has:attachment larger:10M" in the search bar. This will bring up all emails with attachments of over 10MB in size.

If you want to delete larger files, then you can replace '10' with a higher number.

After Gmail displays the search results, select all the emails you do not need and tap on the delete button.

After this, head over to the Trash section and tap on the empty trash button.

In order to delete all the old emails, you can just type the name of the sender in the search bar.

All the emails will appear in your inbox. You can then easily delete all of them without reading any.

How to avoid 'Gmail storage full' issue in the future

You first need to unsubscribe all the unnecessary emails, and then delete all the old ones.

If you don't want emails from a website you signed up then use the unsubscribe link to stop getting these emails.

Notably, it could take a few days for the mailing list to stop sending you messages after you have unsubscribed.