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Addressing exceeded quota problem in Exchange Server

Problem: You have been reported the following error in Exchange Sync logs: Error: Failed to copy an item "" to folder "". Failed to save changes. MAPI_E_CALL_FAILED(0x80004005). Solution: If you see this error logged by CodeTwo Exchange S... (ID:497)

Adjusting the maximum number of open objects that a MAPI client can use at the same time

Problem: You experience problems related to Exchange Server limitations. Click the links below to learn more and get solutions. You are having problems when synchronizing big sets of changes (>250) You are not able to synchronize more than... (ID:137)

Synchronization of public folders after changing the account used for the Synchronization Service

Problem: How to synchronize public folders after you change the account used by the Synchronization Service of CodeTwo Exchange Sync. Solution: The most frequent cause of an erroneous synchronization between personal folders and public fold... (ID:143)

How to run the Exchange Sync service under a newly created user

Problem: You have to run the CodeTwo Exchange Sync service under a newly created user.  Solution: If the status of the Exchange Sync service is stopped (following a server restart) and the service cannot be started, you will need to follow... (ID:188)

Mobile phone numbers are displayed improperly


Public folders are not visible in CodeTwo Exchange Sync

Problem: When browsing source folders in CodeTwo Exchange Sync Admin, you are unable to select public folders – they are not listed at all in the program (Fig. 1.). Fig. 1. Public folders are missing when browsing for folders to be sync... (ID:801)

CodeTwo services do not start

...tically after the system restart would not start. Applies to: Any service-based CodeTwo software. For problems with MS Exchange Transport service in connection to CodeTwo Exchange Rules family products please consult this article. Solut... (ID:385)

MAPI_E_FAILONEPROVIDER and mailbox permissions

Problem: When attempting to configure the CodeTwo Exchange Sync synchronization account service, you see the following error message: Unable to connect to Exchange Server. Failed to open mailbox 'Mailbox - @'. MAPI_E_FAILONEPROVIDER (0x800... (ID:485)

Items that should be synchronized by CodeTwo Exchange Sync do not appear

Problem: You have set CodeTwo Exchange Sync to synchronize your data. Although, in email clients like Outlook, you do not see the synchronized items. Solution: CodeTwo Exchange Sync does not use any email client at all - it operates direc... (ID:563)

How to reinstall CodeTwo Exchange Sync

Problem: How to reinstall CodeTwo Exchange Sync? Solution: Please follow the below steps to uninstall or reinstall the CodeTwo Exchange Sync: Stop the synchronization service either from within the program's administration panel or from Wi... (ID:230)

Items do not appear on mobile devices synchronized by ActiveSync service

Problem: You have enabled the synchronization in CodeTwo Exchange Sync product. On desktop clients you are able to see that the data is being synchronized. However, on the mobile devices connecting via ActiveSync you do not see the items. S... (ID:564)

Error opening default mailbox in the MAPI profile

...erify that, its mailbox was never used - same as above, log in to OWA, its mailbox has MAPI access feature disabled in Exchange  mailbox properties, is hidden from Exchange Address List, you provided a wrong password for it, the password... (ID:414)

What to do when you are unable to use CodeTwo software after a major Windows 10 update

...e steps appropriate for your product: CodeTwo Public Folders: click here. CodeTwo Sync for iCloud: click here. CodeTwo Exchange Sync: click here. CodeTwo Public Folders Mostly, the only issue that can be encountered is that the Syncing Ma... (ID:599)

Increase the number of attempts for opening message store

Problem At the system startup, CodeTwo Exchange Sync Service fails to open the Message Store with default number of attempts. As a result, the synchronization service does not work and needs to be manually started. Solution By default, C... (ID:502)

Error: There is no email program associated to perform the requested action

...nce this error with CodeTwo software, see the sections below to learn about the probable causes and solutions. CodeTwo Exchange Sync Tools and programs for Outlook CodeTwo Exchange Sync If you get the described error when you install Code... (ID:351)

Using MFCMAPI to check mailbox read and write permissions

...permissions to a mailbox. This may be useful to diagnose permission issues with CodeTwo software, for example CodeTwo Exchange Sync or CodeTwo Exchange Folders. Solution: The below steps present an attempt to create a folder within a mail... (ID:363)

Problems synchronizing a large number of items

...ed properly. Solution: The problem may be evident in a below scenario: A task is defined to synchronize two folders of Exchange . After the synchronization of items in folders is finished, the user drops a large number of items to the sourc... (ID:141)


...window or visible in the software's log file. Fig. 1. Example of an error message window pop-up. For example, CodeTwo Exchange Sync logs the following message: Error: Error configuring Microsoft Exchange service in the profile. MAPI_E_AMB... (ID:380)

Non-Unicode characters are displayed improperly

Problem: Non-Unicode characters (e.g. Arabic) are displayed improperly as quotation marks in CodeTwo products. Fig. 1. Arabic characters displayed as question marks. Solution: This problem occurs on systems that are not configured to dis... (ID:514)

How to extend the timeout for services if they fail to start or stop

...Properties. On the General tab, change the Startup type to Automatic (Delayed Start), as shown in Fig. 2. for CodeTwo Exchange Sync. Fig. 2. Selecting the startup type of a service. How to increase the timeout value for the service sta... (ID:228)