Can't sync Outlook on iOS and Android with On Premise Exchange 2016

Question

Can't sync Outlook on iOS and Android with On Premise Exchange 2016

Answer 1

Hi @ Antony Chinnaian,

Email sync only new email and one month data only. Old data does not sync.

Outlook for iOS and Android is a cloud-backed application. For Exchange Server mailboxes, Outlook for iOS and Android's architecture is built directly into the Microsoft Cloud. Check the Outlook for iOS and Android architecture here.

Using this application in an Exchange Server environment, EAS connect supports the synchronization of user local data typically including four weeks of email, all calendar data, all contact data, and outbound status.

In addition, the app periodically trims the items per folder down to the default number, in order to ensure optimal app performance.

For Reference: How much of my mailbox data is synchronized with Outlook for iOS and Android?

Here's a post with a similar question: Outlook App maximum 30 days of e-mail for on-premise exchange.

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Answer 2

There are a few things that could be causing this issue. Here are some things to try:

Check if the Autodiscover service is set up and working correctly. This service is responsible for automatically configuring Outlook on mobile devices. You can use the Test E-Mail AutoConfiguration tool to verify that the Autodiscover service is working correctly.

Check the device's network connection. Ensure that the device is connected to a stable network with good signal strength.

Ensure that the device's operating system is updated to the latest version, and that the Outlook app is also updated to the latest version.

Check if the user account has the correct permissions to access Exchange on-premises. Make sure that the account has the necessary permissions to access the mailbox, and that the account is not blocked or disabled.

Try removing and re-adding the account in the Outlook app. This can help reset any configuration issues that may be causing the sync issue.

Try setting up the account in a different mail app to see if the issue is specific to Outlook. If the account syncs correctly in another mail app, then the issue may be with the Outlook app itself.

If none of these solutions work, you may want to consult with a Microsoft support representative or an IT professional who can assist with troubleshooting the issue.oting the issue.

Answer 3

I tried all the troubleshoot but I have same problem

Answer 4

Email sync only new email and one month data only. Old data does not sync.