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Effective Steps to Fix Outlook Error 550 - Outlook PST Repair

Effective Steps to Fix Outlook Error 550

MS Outlook is well known email-client application which has been widely used for sending or receiving emails. It can be used as both stand-alone program as well as part of Microsoft. The application is featured with advanced functionalities and easy to use interface with the help of which you can easily perform email operations. It is necessary to establish connection between Outlook and mail server in order to send or receive emails. But sometimes there comes a situation when Outlook fails to establish a connection with the server and you receive Outlook error 550 . When you attempt to send emails you receive below error message:

“550 No such user here”

The above error appears only in the situation when you attempt to send emails. Usually the email remains undelivered with some cryptic error code numbers like error code 550. This error also appears in other form as shown below:

“Your message did not reach some or all of the intended recipients. Subject: RE: trying to send this again... Sent: [Date] [time] The following recipient(s) could not be reached: \'Recipient _name\' on [Date] [time] 550 sorry, that domain isn\'t in my list of allowed rcpthosts (#5.4.3)”

Outlook error 550 is send by email server to email client in the situation when checkbox labeled “My server requires authentication” is unchecked. This error generally appears when email client try to send email to the server without providing a password. Problematic account settings are also responsible for the occurrence of above error message. So, in order to resolve this problem you need to correct your account settings which can be done as follows:

  • Go to Account setting option of Outlook which is present under Tool section and then modify the email account setting
  • After that click on More Setting tab which opens a Window
  • Change the Port number and click on OK button
  • Check the account setting by clicking Test Account Setting button. If it ends successfully then click OK button which will resolve your problem

After following aforesaid steps you can easily fix Outlook error 550 . But even if the error persists then it is clear that that it is PST file issue. It might be possible that your PST files have been damaged and you need to repair it using effective third-party software. You can use Outlook PST Repair software in order to repair damaged PST files. After repairing the files you can easily fix Outlook error 550 and can use Outlook smoothly.

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