Apple iPhone 4s - Recover a deleted message; Attachments

Recover a deleted message. Go to the account’s Trash mailbox, open the message, then
tap and move the message. Or, if you just deleted it, shake iPhone to undo. To see
deleted messages across all your accounts, add the Trash mailbox. To add it, tap Edit in
the mailboxes list, then select it in the list.
Archive instead of delete. Instead of deleting messages, you can archive them so they’re
still around, in the Archive mailbox, if you need them. To turn this option on, select Archive
Mailbox in Settings > Mail, Contacts, Calendars > account name > Account > Advanced.
Then, to delete a message instead of archiving it, touch and hold , then tap Delete.
Stash your trash. You can set how long deleted messages stay in the Trash mailbox. Go to
Settings > Mail, Contacts, Calendars > [account name]. Then, for an iCloud account, go to
Mail > Advanced > Remove. For other accounts, tap Account (at the top of the screen),
then go to Advanced > Remove. Some email services might override your selection; for
example, iCloud doesn’t keep mail messages any longer than 30 days, even if you select
Never. Contact your email provider for more information.
Attachments
Save a photo or video to Photos. Touch and hold the photo or video until a menu appears,
then tap Save Image.
Mark up attachments. You can use Markup to annotate an image or PDF attachment.
Touch and hold the attachment, then tap Markup (if it’s an attachment you’re sending) or
“Markup and Reply” (if it’s an attachment you’ve received).