Search for email in Mail on iPhone
In the Mail app , search for emails.
Search for text in an email
Scroll to the top of the email list to reveal the search field, then type the text you’re looking for.
Choose between searching all mailboxes or the current mailbox above the results list.
Tap an email in the results list to see it, then tap the up and down arrows to scroll through the other emails.
Searching looks at the address fields, the subject, and the email body. The most relevant emails appear in Top Hits above the search suggestions as you type.
Search by timeframe
Scroll to the top of the emails list to reveal the search field, then type something like “February meeting” to find all emails from February with the word “meeting.”
Search by email state
You can search for emails by various attributes. For example, you can do any of the following:
Find all flagged emails: Type “flag” in the search field.
Find all emails from people in your VIP list: Type “vip” in the search field.
Find all unread emails: Type “unread” in the search field.
Find all email with attachments: Type “attachment” in the search field.