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But still, it’s worth checking if other users are currently experiencing similar issues with Outlook. Microsoft comes with a great option called Work Offline. Once enabled, this setting lets you disconnect from the server.

For details around general troubleshooting, visit Troubleshooting Outlook issues for more information.You may need to open the message and send it again or choose Send/Receive.If that message has an attachment that's larger than 20MB, delete the attachment and either attach a smaller file or attach a link to the attachment.Occasionally, the Outlook program may need to be repaired.Sometimes, an Outlook add-in will crash and prevent your email messages from sending.If you've changed your password on the website for your email account, you'll need to change it in new Outlook, too.

Error list

You might want to take a look at the cpanel server logs and status or any reported the issue. The methods provided in this article can be used to troubleshoot the error messages listed in the following table. But every once in a while, the Microsoft filters get it wrong and accidentally label a normal email as spam. To start Outlook in safe mode, press the Windows key on your keyboard. In the search box, type outlook.exe /safe, then press Enter. If you've changed your password on the website for your email account, you'll need to change it in new Outlook, too.

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