MAPI 1.0 [000004c2] Error in Microsoft Outlook

Outlook on my computer it displays the error as follows: “The limit for logging reached while waiting for system resources. Try again. MAPI 1.0 [000004C2]”. I tried to set up Outlook by going through Control Panel’s Mail option. I tried many times but I am getting the same error every time.

I have set up Outlook 2013 (but not perfectly) on my new PC. The problem is that, when I open Outlook and immediately start working on it then there is no problem and no error is displayed. However, when I open Outlook and wait for some time to start working on it then the client displays the following message:

and it works only after exiting & restarting Outlook.

Elements That Cause This Error in Outlook

• When compatibility mode is turned on.
• If in case the PST file turns corrupted.
• When incorrect Registry key is configured.

Manual Process to Remove Outlook MAPI Error

Check if the Compatibility Mode Is turned on

• Compatibility mode is a mechanism in which any software application is run using an old processor and Operating system. To check whether the compatibility mode is enabled or disabled, follow steps as shown as below.

          Use the following path to locate Outlook.exe:

• For Outlook 2016: Local disk (C:) >> Program Files >> Microsoft Office >> Office16 >> Outlook.exe
• For Outlook 2013: Local disk (C:) >> Program Files >> Microsoft Office >> Office15 >> Outlook.exe
• For Outlook 2010: Local disk (C:) >> Program Files >> Microsoft Office >> Office14 >> Outlook.exe
• Right click on Outlook.exe and click to select Properties.
• Go to Compatibility tab >> uncheck the box to disable the option Run this program in compatibility mode for:.

• Click the parameter Change settings for all users. From here, uncheck all the checkboxes to disable the compatibility for all users and click on Apply/OK.

Create a New Profile and Set Them as Default Profiles

To create a new Outlook Profile…

• Click on Start button and in the search box, type Control Panel and Enter.
• On the Control Panel, click on Mail >> In the Mail Setup window, click on Show Profiles.
• Click on Add >> provide a name for new Outlook profile and click on OK to save the changes.

To make Outlook Profile as default...

• Select the newly created profile >> check the box to select the option Always use this profile and click on OK.

Modify the Registry Key of Outlook Profile and Create a Fresh One

• First, open Registry Editor. To open it click on Start button from your Windows screen and then in the search box, type Run and Enter. In the search box, type regedit and hit Enter key to open the Registry Editor.
• Under the Registry Editor, navigate to the following key according to the version of Outlook
• Key for Outlook 2013: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Profiles.

• Key for Outlook 2010: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystems.
• Now right click on variable of key according to your Outlook version and then click on Rename.

• To arrange the word, type OLD at the end of the name.
• After you did this now try to open the Mail applet and create a new profile.

Other Workarounds That You May Try If the Problem Persist

Repair MS Office

• Open your Control Panel >> click on Programs >> now click on Programs and Features.
• Right click to select the Office Programs that you want to repair >> click Change.
• In the How would you like repair your office program section, select online repair >> click on Repair.

Despite following the steps given above if you are still seeing the discussed error in Outlook then try to do the follow the given steps:

Try installing and uninstalling MS Office

Delete MAPI32.dll File

• To delete msmapi32.dll navigate to this path in your Windows Explorer: C:\Program Files\Common Files\System\Msmapi\1033
• Now right click on MSMapi32.dll and click on Rename.
• In the Rename box, change the filename to MSMapi32.old and start your Outlook.