Sometimes you might encounter errors like MAPI – unexpected error when you try to send or receive mail on your Microsoft Outlook. MAPI stands for Messaging Application Programming Interface. This can happen due to many reasons such as any interruption while sending and receiving messages, corruption in mapi.dll file and many more.
Any kind of corruption in PST files can also be the reason for MAPI error in outlook. PST files are the most important part of Microsoft Outlook as it saves all the mails, calendar events, tasks, personal folders, journals, etc. in it. Any damage to these PST files makes your Outlook data fully inaccessible due to which you might get into severe problem. But one can repair MAPI error by using PST Repair Tool.
