With Mail Drop, attachments are temporarily uploaded to iCloud where they'll stay for 30 days. If your recipients use Mail in OS X Yosemite, they will receive the attachment as they normally would.

To make use of Mail Drop, you will have to have iOS 9.2 or later installed on your iPhone, iPad or iPod touch. While your Mac will need to be running OS X Yosemite or later.

Mail Drop is a feature built into your iPhone's Mail app that allows you to email large files. ... Mail Drop is built into your iPhone's Mail app. NurPhoto/Getty Images 2019-11-26T21:52:00Z ...