Easy fix: MAPI error in Outlook

Updated on June 6, 2020

MAPI errors in Outlook may appear daunting at first, but with the help of Remo Repair PST, you can easily fix them. It is a tailor made tool to fix MAPI errors that works by repairing corruption in associated PST files. Try the free trial now!

Understanding Outlook MAPI Errors

Microsoft Outlook, sometimes throws complex error messages such as msmapi32.dll error, MAPI failure: unspecified error etc. Since these errors seem hard to interpret and understand, it may alarm Outlook users. If you are facing such situation, this article will help you understand and fix MAPI error in Outlook 2016 and older versions.

Let us begin by understanding what the terms 'Mapi' and 'Mapi.dll' mean. MAPI-Messaging Application Programming Interface, is an API that allows you to send and receive emails on your computer. And a MAPI.dll file is a dynamic link library file associated with MAPI. If any corruption to the MAPI.dll file, you won't be able to send email. This will leave you with the mapi32.dll Outlook error.

Manually Fix Mapi Error in Outlook 2016 (& older versions) using 'fixmapi.exe'

This is a simple manual method that can help you to fix MAPI error in Outlook 2016. Using a built in .exe file, Mapi errors like msmapi32.dll error can be fixed easily. Follow the steps mentioned below to quickly fix Outlook MAPI error:

  • Close Microsoft Outlook on your computer
  • Go to search bar and type Mapi32.dll and hit Enter
  • Go to the files location folder and rename it as Mapi32.old
  • Now type 'fixmapi.exe' and Enter
  • Now a new Mapi32.dll file is created, replacing the old corrupt Mapi32.dll, thereby fixing mapi error in Outlook.

After following the above steps start Microsoft Outlook and try sending emails to see if you have successfully fixed this Outlook Mapi error. If you are still facing this issue, then it has something to do with your PST file. It is recommended to repair your PST file to fix Mapi errors in Outlook.

Fix Mapi error in Outlook 2016 using Remo Repair PST

Remo Repair PST is the most recommended tool that is tailor made to fix Mapi error in Outlook by repairing corrupt PST files. The software is designed to make the process of repairing PST file a simple one even for a novice user. Remo Repair PST is available across all platforms of Windows operating system and supports all versions of Outlook.

Simple Steps to fix Mapi error in Outlook by repairing PST file

Download and install Remo Repair PST on your computer and follow the below mentioned steps to fix Mapi error in Outlook 2016 and earlier versions.

Step1: Launch the software, in the home screen, choose 'Select PST File Manually' to select PST file manually if you know the location of the PST file. Else, select 'Open Default PST File' if you do not know the location of the PST file.

Next, browse and select the PST file if you chose 'Select PST file manually' in the previous step.

Step 2: Select Normal Scan in the next step to repair PST file and choose a location to save the repaired PST file.

Step 3: Click on Repair to start the process of repairing PST file. After completion of the PST repair process the software will let you have a look at the repaired PST file. You can preview Outlook data items like email, contacts, notes etc. in Outlook styled browser. Finally, click on Save to save the repaired PST file.

Note: Please note the steps to fix MAPI errors using Remo Repair PST are the same in earlier Outlook versions as well.

Watch the below video guide to know the complete PST Repair procedure

Benefits of using Remo Repair PST

  • Tailor made to easily fix mapi32.dll error in Outlook by repairing PST file
  • Ensures quick repair of PST files
  • Designed to repair corrupted or damaged outlook data file
  • Most recommended tool to fix Outlook Send receive error
  • Facilitates a preview of repaired PST file in Outlook styled browser
  • Supports Outlook 2016, Outlook 2013, Outlook 2010, Outlook 2007.


Microsoft Outlook errors like msmapi32 dll error are pretty rare. Choose the automated solution to succesfully repair mapi32.dll errors by repairing PST file using Remo Repair PST. This tool is available for a free trial, a great way to evaluate the outcome of repair. Try now!

Additional Information: If you are looking for a way to recover lost Outlook contacts, then click on the given link.

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