{"id":378,"date":"2019-05-04T09:31:42","date_gmt":"2019-05-04T09:31:42","guid":{"rendered":"https:\/\/www.mailconvertertools.com\/blog\/?p=378"},"modified":"2025-07-04T11:42:41","modified_gmt":"2025-07-04T11:42:41","slug":"how-to-fix-error-code-0x80070021-in-microsoft-outlook","status":"publish","type":"post","link":"https:\/\/www.mailconvertertools.com\/blog\/how-to-fix-error-code-0x80070021-in-microsoft-outlook\/","title":{"rendered":"How to Fix Error Code 0x80070021 in Microsoft Outlook?"},"content":{"rendered":"\n\n
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Summary:<\/strong> Microsoft Outlook is one of the extensively used email client software and from time to time every frequent Outlook user encounters an error. Among all one of the errors is 0x80070021 which interrupts the sending and receiving emails procedure. In this blog, you will find some of the best manual approaches and a professional MailConverterTools<\/strong> <\/a>PST Recovery Tool<\/strong><\/a> to fix error code 0x80070021 in Microsoft Outlook.<\/p>\n

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Reasons behind Outlook error 0x80070021<\/h3>\n

It is generally seen error 0x80070021 occurs in Outlook when there is a wrong password or user-id or there is an issue in the Outlook PST file. So, to avoid facing this error you need to handle the PST files in a systematic way. There are other factors that cause improper functioning of Outlook and the generation of the error 0x80070021in Outlook.<\/p>\n

Network Device issue:<\/strong> Any user if is trying to access a PST file that is present in a network server and if there is any problem in cards, hubs, routers, etc. it will cause harm to your pst-file or the worse scenario can be corruption.<\/p>\n

Sudden Power Failure:<\/strong> While exchanging or communicating via emails in Outlook, all of a sudden if there is a power failure it causes damage or corruption in the pst file.<\/p>\n

How to avoid this issue:<\/strong> Prevention is always better than cure. So, every regular user of Outlook must have proper arrangements of network hardware, avoid power failure by having UPS, regularly look for bad sectors, and if it is found then fix it on an immediate basis.<\/p>\n

Related Post:<\/strong>  Fix send receive error in Outlook<\/a><\/strong>.<\/p>\n

More tips you can follow:<\/strong><\/p>\n