There are several guides on and which provide step-by-step instructions on how to use MFCMAPI to achieve specific tasks or solve issues which can’t otherwise be solved. If this doesn’t like something for you, it’s best not to use this tool with any important data of which you don’t have a backup.Īlthough this isn’t an official Microsoft application, it is however developed by Stephen Griffin who is a Senior Escalation Engineer in Developer Support at Microsoft focusing on Outlook and Exchange Server APIs (in other words: this is a very reliable application). pst data files can be reconnected to a pop mail account. You cannot connect old ost files to your mail accounts, only. It’s designed for expert users and developers only so pretty much all safety nets are missing and making a mistake could result in total destruction of your mailbox data. Once synced, within MS Outlook, File>Account Settings>Email Tab>New>Add the gmail account, once verified, complete the process and allow that account to fully sync before adding the next mail account. Less technical You could say that MFCMAPI is a low-level mailbox editing tool.

MFCMAPI provides access to MAPI stores to facilitate investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development.

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