Step-by-Step Guide: To show more emails on an iPhone (so you can see older messages instead of only a small number).

This setting controls how far back your email history loads in the Mail app.

1. Open Settings on your iPhone.

2. Scroll down and tap Mail.

3. Tap Accounts.

4. Select the email account you want to change.

5. Tap Mail Days to Sync (or similar wording depending on account type).

6. Choose a larger range such as:

1 Month
No Limit (shows all available emails)

After changing this, reopen the Mail app and scroll down to load more emails.

Be mindful of your mailbox size, as the more you download onto the iPhone the more Gb space it uses in the phone.