How to Save and Reopen a Message as a Draft in iPhone Mail
To save a message draft in iPhone Mail or iOS Mail on an iPad:
How to Move an Email Out of the Way in iOS Mail
To move an email you are composing out of the way so that you can read emails or start another email in iOS Mail, swipe down from the email subject line. To continue composing the draft, go to the bottom of the screen and tap the email subject line. The iOS Mail app does not save messages to the Drafts folder or the IMAP server automatically. The out-of-the-way message draft is saved locally on the device. If you close and reopen iOS Mail or restart the device, the message will still be there. However, you could also lose it if the device has a critical error.
What Happens When You Save a Draft in iOS Mail
When you save a message as a draft, its current state is saved in the Drafts folder. That includes the recipients (in the To, Cc, and Bcc fields), the email subject text, and text and images in the email body. With an IMAP account set up to synchronize (which is the default for most accounts), the message draft is saved on the server. You can continue to work on the draft on any computer or device connected to the same email account using IMAP or a web interface, for example.
