Fix Exchange 550 Errors Easily

November 26, 2020 by Owen Faunce


This guide identifies several possible causes that can lead to an Exchange 550 error. It then presents some possible recovery methods that you can use to try to resolve the issue.

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Error 550 means that the user is not authenticated to the server and therefore cannot send email. Another reason might be that there is no domain-specific recipient policy in the user's department.



  • 8 minutes to read.
  • It is very annoying to see an error message after sending an email. This section describes what to do if you receive error code 5.7.1 (also known as a non-delivery report, resubmit message, delivery status notification, or DSN) in a non-delivery report. This information also applies to error codes 5.7.0 to 5.7.999.

    This information also applies to error codes 5.7.0 through 5.7.999 in Exchange Online, Microsoft 365, or Office 365. DSN error code 5.7.1 can have several causes, for which solutions are presented later in this section.

    Why Did I Receive This Transition Message?

    You received this NDR with error code 5.1.10 for one of the following reasons:

    If the message cannot be delivered, the recipient's email system typically uses the sender's address in the From field to notify the sender in an NDR like this. this. But what if the message was sent by a spammer who spoofed the sender's address so that the message appeared to come from your email address? The NDR you receive is useless because it gives the false impression that you did something wrong. This type of unnecessary NDR is known as backscatter. It's annoying, but if this NDR is sent back, your account has not been compromised.

    • The spammer sent the message to a non-existent recipient and spoofed the sender's address, so that the message looked like it was sent from your email address. The resulting non-delivery message is called backscatter, and you can safely ignore or delete the message.

      Backscatter is harmless in itself. However, if you get a lot of them, yourYour computer or device may be infected with spam-sending malware. Run a malware scan. Also, ask your email administrator to read the following section to prevent spammers from impersonating you or anyone else in your organization: Configure SPF to prevent identity theft .

    Solutions To Fix Exchange Server Error "550 5.7.1 Relay Could Not Be Transferred"

    Follow the solutions below to resolve the above error message:

    1 St Solution

    Allow and allow all computers and users to send emails: follow these steps:

    • Access to administrative groups in Exchange Server Manager
  • Go to "Administrators group name" -> "Server" -> "Server name" -> "Protocols" -> SMTP.
  • Right-click the Default SMTP Virtual Server and select Properties.
  • Now go to the "Access" tab, click on "Relays" and select "List Below Only".
  • Then add the IPs you want to goRenew, and your domain.
  • Finally, check "Any computer that authenticates successfully can be redirected regardless of the list above." Voila, everything is ready !!!
  • 2 E Solution

    You can also view various Exchange Server errors in the application event log and use the built-in utility to fix them.

    If the above error was caused by corruption, you can fix and fix it using Microsoft's built-in ESEUTIL utility. If the built-in utility does not solve the problem either, you need to use a third-party Exchange Server Database (EDB) repair tool.

    Solution 3 Rd

    EDB File Repair Tool is a suitable Exchange 550 5.7.1 troubleshooting and recovery software that fails to transmit errors that usually occur due to a corrupted or corrupted database.

    Information About EDB File Recovery Tool

    exchange error 550

    To repair damaged or damaged EDB files, you should try a professional EDB recovery tool. E Oo recovery app can fix all kinds of problems that lead to healthy EDB file corruption. With this tool, you can recover emails, attachments, contacts, calendar, tasks, etc. from corrupted EDB files. It contains many features that you can use to troubleshoot Exchange Server 550 error 5.7.1 Unable to send relay error. In this way, you can recover corrupted EDB files, restore them and save as MS Outlook PST file. You can also export recovered mailboxes to Live Exchange Server and view specific emails in the recovered EDB file. You can easily save the recovered EDB as MSG, EML, HTML, RTF and PDF files. It supports MS Exchange Server 2016/2013/2010/2007/2003/2000 and 5.5.

    June 2021 Update:

    We now suggest using this software program for your issue. Also, Reimage repairs typical computer system errors, defends you from file loss, malicious software, computer system failures and optimizes your Pc for maximum performance. You can fix your Pc challenges swiftly and prevent others from happening by using this software:

    • Step 1 : Download and install Computer Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista - Microsoft Certified).
    • Step 2 : Click on “Begin Scan” to uncover Pc registry problems that may be causing Pc difficulties.
    • Step 3 : Click “Repair All” to fix all errors.


    Anyone can recover their EDB database and recover their data with this recovery app because it has an easy to understand user interface. The user interface included in this tool contains a variety of graphic symbols that do the job The app is very easy to use. Therefore, there is no need to call an EDB specialist to repair or restore a damaged database. This recovery tool also does not need a backup to restore your database. YES, it is true that you do not need a database backup for data recovery. So try this app and get data from your EDB file.

    You may also be interested in:

    • How to fix Exchange Server Error 1053
    • How to fix Exchange Jet Error 1018
    • How to fix a public bug (Pub.edb)



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    What does Recipient address rejected mean?

    Recipient address rejected your message: This is an error caused by the spam filter currently in use in the recipient's domain where your message was found and marked as spam. You must ask the recipient to whitelist you. Custom settings where users flag similar messages as spam.

    How do I fix email errors?

    Fixed SMTP server error in email
    1. Open your email client (Outlook Express, Outlook, Eudora, or Windows Mail).
    2. On the Tools menu, click Accounts.
    3. Click your email account, then click the Properties button.
    4. Click the General tab.
    5. Make sure the "Email Address" is your valid email address for this account.
    6. Click the Server tab.

    How do I create a non delivery report in Outlook?

    In Outlook, you have the option to receive a delivery receipt confirming that the email was sent to the recipient's mail server. To enable or disable Delivery Status Notification (or DSN), you need to go to File> Options> select the Mail tab and go to the Tracking heading.






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