You probably send a lot of emails from your Mac, and you are definitely faced with the problem of sending large files. In this article I’ll try to explain how Mail Drop works and how to use it.

What is Mail Drop?

The Mail Drop feature from Mail is designed to bypass restrictions on the size of emails, allowing you to send messages up to 5GB in size.

Mail Drop and iCloud

When sending large files, the sent data is saved in iCloud, and links to them appear directly in the message body. In this case, iCloud storage is used as an intermediary, since only a text message and a link are sent to the server.

The process of adding a file has not changed – when creating a new message, you need to click on the paperclip icon and select the file to be sent. To attach an image, video or zip archive to a letter, just drag it to the right place or press the right mouse button. You can attach several files at the same time, but their total size should not exceed 5GB.

How Does Mail Drop Work?

Read more: How to Change Default Mail Client on Mac?

When the file is attached, Mail displays the volume of the message as a whole (under the line of the sender’s address). If the size of the letter exceeds 5GB, then the color of the numbers changes from black to red.

How Does Mail Drop Work?

It is important to note that only owners of Apple email boxes (with or domains) can add attachments up to 5GB in size.

For example, if you send a letter from the gmail box, the program will indicate that the size is exceeded.


As for the recipient, to him the email is displayed in its usual form with reference to iCloud. If it also uses Mail at macOS, then the attached content will automatically be downloaded and displayed next to the text of the letter, depending on the settings.

It’s the best time to ask questions and give us your feedback in comments.


Hi there! My Name is Vincent Lago! My goal is to share insightful reviews, guides, and manuals for people looking to know more about current solutions for Apple hardware and OS. I have years of technological background knowledge including owning a custom iMacs & PCs which was using for different types of business. And now, I want to share my experience with you.

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