Mac For Outlook 2016 Sync Error

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Aug 31, 2017 Outlook is a Microsoft product. We normally recommend that you visit the Office for Mac product forums hosted by Microsoft for assistance. You can begin finding it by clicking: Outlook 2016 for Mac Help.

  • This is done by selecting the “Labels” tab in Settings to select folders to sync to IMAP. Here, you choose what folders you need visible in Outlook; if you want all folders to show up then leave settings as is. Once you have finished with this you can then re-add your Gmail account as IMAP. Under the Tools drop down menu, select Accounts.
  • This syncing issue between Outlook and Exchange Server is a common problem and it needs to fix effectively. So, here in this blog, I will be discussing ways to fix Mac Outlook not syncing with exchange server problem. Causes of Mac to Exchange Synchronization Problem. The main reasons for Outlook Mac sync issue with exchange server are.
  • In Outlook, click Help Check For Updates. If an update is found, download and install it. Restart Outlook. If the problem continues, click Help Contact Support.
  • IMAP synchronization issues in Microsoft Outlook 2016 / 2013 comes when some update or plug-in installed in the Outlook application. This issue with Outlook might create a serious problems in the use of email client which further make you unable to receive new mail or access the data from MS Outlook. Some common causes behind IMAP sync issues.

Outlook for Mac facilitates offline working in an Exchange environment. Synchronization between the server and client application is done so that whenever there is any modification in the Server-side or client-side, the change gets updated on the other side. Sometimes, this synchronization process gets affected partially or fully. Due to this, mailboxes are not updated on the server-side as well as on the client-side.

Prominent Reasons Behind this Synchronization Issue

Many Outlook for Mac users face this issue, and so we need to realize the causes behind it. We have stated them here:

  • Offline Mode: Your Outlook for Mac is in Offline Mode
  • Failed to Connect: You failed to connect Outlook for Mac with the Exchange Server
  • Cache Issue: Your Outlook Cache is corrupted
  • Settings: Settings are not accurately configured
Fixing “Outlook for Mac not syncing with Exchange Server” issue

Now, as you have got the main reasons behind the issue, we will provide you some ways to get out of this issue.

Read Also: What Outlook for Mac Users can do when their Exchange mailbox is full?
  1. Check Offline Mode
    It is the most basic check that you can perform before pursuing any other method. Go to the Outlook menu and check if the Work Offline option is selected or not. If selected, unselect it and check if the synchronization is better now.
  2. Rebuild the Outlook for Mac File
    To fix this issue, you should perform the troubleshooting as explained here.
    Firstly, close all the Outlook for Mac related processes currently running on the system. Take a backup of the Identities folder of Outlook for Mac in C drive. Then click on Outlook application with Alt key on hold to start the Microsoft Database Utility app. Here, select the identity which you want to recreate and click the Rebuild option to create it. Wait until the process gets completed.
  3. Clear Cache in Outlook
    This method works when any specific folder is not synchronizing, but the rest of the Exchange folders are synchronizing with the Outlook. Here is the fix.
    First, ensure that there is a connection between Outlook for Mac and Exchange Server. Right-click on the respective Exchange folder which is not synchronizing and click on the Properties option. Now, switch to the General tab and click on the option Empty Cache. Next, check if the folder is synchronized and new items are received in it.
  4. Confirm Exchange Connectivity
    The issue can be due to error in connection of Outlook with the correct Exchange Server. You should check it once to confirm if this is the issue. Follow this process:

    Go to Tools > Accounts in your Outlook for Mac and check over the Exchange Account. If there is an orange indicator against the added Exchange account, then it means there is some issue with it. You can try disconnecting it and re-configuring it. Try connecting it with Outlook on the web and check the status of Exchange Server now. If everything is fine, connect the desired server again.

Outlook 2016 for mac standalone

The above methods are easy and can solve the synchronization issue between Outlook for Mac and Exchange Server. You can give these solutions a try and get rid of that unwanted situation quickly.

Outlook Mail Sync Error

How to Retrieve Inaccessible Outlook for Mac Data?

For

If you are still not able to fix the issue with your Outlook for Mac data file, you can think of converting the OLM file to PST and recover its data. For this, we bring the most promising OLM Converter tool – Kernel for OLM to PST Converter tool, which converts OLM file to Outlook 2019, 2016 & 2013. It also allows users to make secure migration from OLM to Exchange Server and cloud-based platform of Office 365. The tool provides many filter options for users to move only specific data to the destination. Also, it provides complete support to all Outlook for Mac versions including Outlook 2016 for Mac.

You may better understand the OLM to PST conversion process by going through the steps of the tool.

  1. Run Kernel OLM to PST Converter and use Browse or Search (for automatic search in the selected system drive) option to add the desired number of OLM files for conversion purposes. Click Next.
  2. After scanning the files, select any mailbox item and view its preview. Now, click the Save option.
    Note 1: You can save file items in multiple formats by right-clicking and selecting the required option.
    Note 2: With the Find option on the Toolbar, you can perform a deep search for any mailbox item using multiple filters and options.
  3. Choose PST File (MS Outlook) option. Click Next.
  4. Add filters like email metadata (From, To, Subject), Item Type, and Date Range as required and click Next.
  5. To manage the converted PST file size, you can use the Split option and also can add a prefix to the store name.
  6. Browse and add the saving path location for the converted PST file and click Finish.
  7. The conversion process will get started and soon completes with a confirmation message.
    So, conversion of OLM to PST file is quite handy with the Kernel OLM to PST Converter software.

Final Words

Due to the Exchange synchronization issue, Outlook for Mac users may not have the updated information in their mailboxes. This issue can be fixed in many ways. However, if all these methods fail to fix the issue, they can think of recovering Outlook for Mac data using an OLM to PST converter.

More Information

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Original KB number: 3146087

Symptoms

Mac for outlook 2016 sync error problems

You use Microsoft Outlook 2016 for Mac or Outlook for Mac 2011 to connect to a mailbox on a Microsoft Exchange server. When you send an email message that contains a large attachment, you receive the following error messages in Outlook for Mac.

Or, you receive a non-delivery report (NDR) in your Inbox like this one:

The message contains diagnostic information for administrators, such as the following:

Remove Server returned '500 5.2.11 RESOLVER.RST.SendSizeLimit.Sender; message too large for this sender'

Cause

This issue occurs when you send an email message that's larger than the Exchange Web Services (EWS) message size limit that's configured on the Exchange server.

Resolution

Microsoft Outlook 2016 Synchronization Issues

You can increase the message size limit on the Exchange server to allow for larger email messages to be sent from Outlook for Mac clients and other EWS clients. For more information, see the following TechNet articles as appropriate for your version of Exchange Server.

Exchange Server 2016 and 2013: Configure client-specific message size limits

Exchange Server 2010: Set message size limits for Exchange Web Services

More information

For more information about this issue, see the following article in the Microsoft Knowledge Base:

Mac For Outlook 2016 Sync Error Windows 10

3107326 You can't send large attachments by using the EWS client