iCloud User Guide
- Welcome
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- Sign in and use iCloud.com
- Customise the homepage
- Keynote
- Numbers
- Pages
- Recover files and information
- Use iCloud on your Windows computer
- Get more help with iCloud
- Legal notices and acknowledgements
- Copyright

Add an email attachment in Mail on iCloud.com
You can attach one or more files to a message. If you want to attach files that are too large to send in email, you can use Mail Drop.
Tip: You can also share files with other iCloud users through iCloud Drive. See Share files and folders in iCloud Drive on iCloud.com.
Add an attachment
In Mail on iCloud.com, do one of the following while writing a message:
Click
in the top right-hand corner of the message window. Select the files you want to attach, then follow the onscreen instructions to begin uploading the files.
Drag the file you want to upload to the message.
If your attachments are too large to send in an email, you are asked if you want to deliver the attachments using Mail Drop. If you agree and Mail Drop is turned on, the attachments are uploaded to iCloud.
Note: If you send an email with large attachments, it might be returned by the recipient’s email service if your email exceeds the size limit set by that service.
Remove an attachment
In Mail on iCloud.com, while writing a message, hold the pointer over the attachment in the message window.
Click
.
You can only remove an attachment before you send the message.
You cannot remove files already sent with Mail Drop. They expire after 30 days.
Turn on Mail Drop for large attachments
You can use Mail Drop to upload large attachments to iCloud, where they are encrypted. Recipients see an attachment or a Mail Drop link in the message and they can download the files for up to 30 days after they are sent. See the Apple Support article Mail Drop limits.
In Mail on iCloud.com, click
at the top of the Mailboxes list, then choose Settings.
Click Composing, then select “Use Mail Drop when sending large attachments”.
Click Done.
See Reply to or forward email to include original attachments in a reply.