MAPI Developer: MAPI call (lpFolder)->OpenEntry() takes 2 minutes to open messages in mailbox

Recently I was working with a MAPI developer and came across this interesting issue. We noticed their custom MAPI application takes 2 minutes to open the messages in a given mailbox. Further troubleshooting we noticed they see this behavior with the MAPI call, (lpFolder)->OpenEntry(). It takes 2 minutes to open messages in a given mailbox…


Step-by-Step : Accessing Exchange mailbox using Exchange MAPI/CDO and MFCMAPI

One of my customer updated that he downloaded the MFCMAPIat his Exchange Server 2010/2013, when he ran he noticed the following error – he wanted to access the exchange mailbox programmatically. Then he noticed the following error as well: To start with he needs Exchange MAPICDO, as Microsoft Exchange MAPI and CDO 1.2.1 provide access…


Exchange throttling: MAPI application fails with error “The information store could not be opened. [MAPI 1.0 - [MAPI_E_LOGON_FAILED(80040111)]]”

We recently resolved a case where a customer tries accessing Exchange Server 2010 mailboxes (DAG) via their custom Exchange MAPICDO based application. On average 2-3 days once, they’re frequently facing an error “The information store could not be opened. [MAPI 1.0 – [MAPI_E_LOGON_FAILED(80040111)]]” while attempting to connect to Exchange server 2010. After some days of…


Download: Rollup 4 for Exchange Server 2010 Service Pack 1

Click here to download Rollup 4 for Exchange Server 2010 Service Pack 1.  Some of the known issues were addressed @ Update Rollup 4 for Exchange Server 2010 SP1: 2465292 "MAPI_E_FAILONEPROVIDER (0x8004011D)" error message when you access an Exchange Server 2010 mailbox by using a MAPI application 2394554  An email message is not delivered if…

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"MAPI_E_FAILONEPROVIDER" when you try to connect to a mailbox on an Exchange 2010 from an Exchange 2003 server

Recently one of my customer updated that when he tried connecting to a mailbox that is located on a  Exchange Server 2010 from Exchange Server 2003 by using a custom MAPI/C++ application. But it failed and it thrown the following error message: “MAPI_E_FAILONEPROVIDER”. As part of troubleshooting the issue, we tried using MFC MAPI utility…


Legacy CDOEX application throws error 8004011B when we open appointment created using Exchange Web Service (EWS)

My customer has CDOEX based legacy application which pulls the calendar and appointment items. Later they had merged their Exchange Server 2003 SP2 along with Exchange Server 2007 SP1 – mixed mode environment. He had an unique issue, whenever he tries to access couple of appointments created in Exchange Server 2007 environment, his CDOEX application…

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Tutorial : Free/Busy data - Series # 1

Publishing Free/Busy data: Free/busy data is published information that contains a user’s personal availability data based on the user’s schedule. Microsoft Exchange Server uses the information extensively when users schedule meetings. Exchange Server 2003 stores free/busy information in a dedicated public folder that is named SCHEDULE+ FREE BUSY. This folder contains a separate subfolder for…

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Outlook Errors : General Errors - Part # 2

Receive error when you press F9 to send and receive e-mail in Outlook 2007 & Cached Exchange Mode: You use Cached Exchange Mode in Microsoft Office Outlook 2007. Additionally, you use the DownloadOAB registry value to prevent the automatic download of the offline address book (OAB). When you press F9 to send and receive e-mail…


Outlook Errors : Send and receive e-mail errors - Part # 1

Outlook Send and receive e-mail errors: When you try to send and receive e-mail, you may receive an error message that is similar to one of the following: No connection could be made because the target machine actively refused it. The server could not be found. (Account:account name, POPserver:’mail’, Error Number: 0x800ccc0d) Task ‘server name…

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Issue while searching full user name with address book ?

If you type a full user name in the Display Name field in the Find dialog box of your address book when you try to search a Lightweight Directory Access Protocol (LDAP) server in Outlook 2002/2003, you may receive the following error messages: Unable to display results because too many entries in the Internet Directory…