How to Sync More Emails in Exchange Accounts for iPhone

Personalize the settings for your Exchange email account

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The iOS Mail app for iPhone defaults to synchronizing the last month's worth of emails for Exchange ActiveSync accounts, but you can change it to see more or fewer emails. The Mail Days to Sync option in the Mail app can be adjusted to show emails from the last day up to as far back as there are emails in your account. The choice is yours depending on how many emails you want visible from the email app.

Instructions in this article apply to recent versions of iOS as well as versions back to iOS 8.

How to Sync More or Less Emails on iPhone

Change one setting for your Exchange account to define how many days Mail will sync messages.

  1. Open Settings.

  2. Tap Passwords & Accounts.

    If you don't see this option, go to Mail > Accounts or Mail, Contacts, Calendars, depending on your iOS version.

  3. Tap the email account you want to change the settings for.

  4. Choose Mail Days to Sync, then choose how many recent days of email you want to download to Mail automatically. Choose No Limit to synchronize all mail.

    Exchange, Mail Days to Sync, No Limit

    You don't need to sync every email if you want to search for old messages. Modern versions of iOS such as iOS 12 and iOS 11 find emails that haven't been synchronized and that aren't currently visible.

  5. Your mail is synchronized to your preferences.

  6. Tap the Home button to exit the settings