How to send large email attachments on iPhone and iPad

While sending an email with the Mail app, you might need to attach a large file or a document to it. For security reasons, you can't go wandering through the file system, but you can attach any file to any email with the help of your Cloud Storage system, including the Files app, Dropbox, Google Drive, OneDrive, and more.

How to send large email attachments from the Files app on iPhone and iPad

The Files app gives you access to all of your documents, videos, photos, and more that are saved onto your iCloud Drive, all from the convenience of your iPhone. This makes it easier to send large email attachments by browsing through your folders and recent files. Here's how!

Launch Mail from your Home screen
Tap the Compose button on the bottom right corner of your screen to start a new email.
Touch-and-hold to bring up the editing menu on iPhone. (Or use the shortcut key on iPad)
Tap the arrow button to get more options.
Tap Add Document.

Source: iMore
If the file isn't in the recent tab, tap on the Browse tab. You might need to Browse again at the top left corner of your screen, if your file is not on iCloud either.
Tap on the folder that contains the file you want to attach, if it's not at the top level.
Tap on the file you want to attach.

Add a recipient, a message, and you're good to go.

How to attach Dropbox, Google Drive, or OneDrive or enterprise files to email on iPhone and iPad

If you want, you can also attach and send large email attachments by using other popular Cloud Storage systems. This is thanks to the document provider extension feature. Here's what you need to do.

How to use Dropbox, Google Drive, OneDrive, and other could storage services with the Files app on iPhone and iPad

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For the document provider extension to be available, you first have to download the host app from the App Store.

Once you've downloaded the app, launch it and log into your account. Then you can start attaching away.

Launch Mail from your Home screen
Tap Compose to start a new email.
Touch-and-hold to bring up the editing menu on iPhone. (Or use the shortcut key on iPad)
Tap the arrow button to get more options.
Tap Add Document.

Source: iMore
Tap Browse at the bottom of the screen. You might need to tap Browse again at the top left corner of your screen.
Tap the app you would like to attach files from.
Tap the files you would like to attach to your email.

Source: iMore

Add a recipient, a message, and you're done.

How to use the attachment shortcut on iPad

The iPad has shortcut keys to either side of the predictive keyboard. In Mail, one of those keys is for attachments. Instead of having to use the edit menu, as detailed below for iPhone, simply use the attachment button to save yourself some time. Everything else remains the same.