It's out there somewhere; or in there. Who knows?
Let's find out with the help of iOS Mail, which scours not only the messages it already knows but can continue the search on the server (if supported).
Search Mail in iOS Mail
To find emails in iOS Mail:
- If you know in which folder the message you seek is:
- Go to the folder in which you suspect it.
- In iOS Mail on an iPhone or iPod touch:
- Go to the message list's top.
- Tap in the Search field.
- Enter the desired search term or terms.
- iOS Mail will search for the terms in both the emails' header areas and bodies.
- Terms can appear as a phrase but also individually or as parts of words.
- iOS Mail will return all messages that include all terms.
- Tap Search.
- iOS Mail will already have begun returning results; you need not tap Search to open or interact with them, of course.
- To search across all folders:
- Make sure All Mailboxes is selected at the search result's top.
- To search only the current folder (which should return fewer results faster):
- Make sure Current Mailbox is selected at the top of your search's results.
Search Mail in iPhone Mail 6
To find messages in iPhone Mail:
- Open the folder in which you suspect the sought message.
- Scroll to the message list's very top.
- Tap in the Search folder field.
- Enter the desired search term.
- Tap From to search sender names and addresses.
- Tap To to search recipients (in the To: and Cc: fields.
- Tap Subject to search the Subject: lines.
- Tap All to search message bodies in addition to sender, recipient and subject lines.
iPhone Mail 3 and 4 will only search the header lines, not message text.
- Tap Continue Search on Server… to search all mail in the folder, not just what iPhone Mail has downloaded before.
Search Across Folders in iPhone Mail
To search all your mail folders in iPhone Mail:
- Go to the leftmost Home screen.
- Swipe to the right to reveal Spotlight.
- Type the desired search terms in the Search iPhone field.
- iPhone Mail will search the From:, To:, Cc: and Subject: fields (but not message bodies) of all mail already downloaded to your iPhone, no matter the folder.
(Updated October 2013)