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Error 550 5.1.1

Solution 4: Update forwarding rules to remove incorrect addresses    Sometimes the NDR is caused by a recipient that the user didn't directly send mail to. For example, the recipient might have been moved from an on-premises Exchange organization to Exchange Online, or vice-versa. We won't share your info with anyone. Some other configuration error on the recipient's end. –joeqwerty Dec 12 '12 at 22:53 Thank you joeqwerty.

Thanks. Add Cancel × Insert code Language Apache AppleScript Awk BASH Batchfile C C++ C# CSS ERB HTML Java JavaScript Lua ObjectiveC PHP Perl Text Powershell Python R Ruby Sass Scala SQL You are reading this because you’ve received an automated message with a “550 5.1.1” error code in it. If one of these spam messages can’t be delivered, an email server might send an NDR like the one you got, back to the From address. check my site

Empty the entire auto-complete list Open the user's mailbox in the light version of Outlook Web App. TALK TO AN EXPERT NOW! Why use a kettle to heat water? It might also be a problem with the recipient’s domain configuration.

  1. Please try the request again.
  2. Make sure you use a strong password.
  3. Solution: Verify the MX records for a domain, using the command: dig domain.com MX If you notice DNS errors or missing MX records, then contact the recipient server support and get
  4. If not, it’s possible that a spammer or someone else inappropriately used your email address when they sent the message.
  5. We free up your time by taking care of your customers and servers.
  6. The problem is with a few specific senders - that is specific companies/server/domains cannot send mail to any of our recipient addresses - no mail from any sender at those locations
  7. I also work with various other platforms and products, usually in the form of migrations.Microsoft is not a "religion" for me.
  8. c.
  9. Covered by US Patent.
  10. Should I have doubts if the organizers of a workshop ask me to sign a behavior agreement upfront?

If the steps here don’t help you to successfully send the email, then contact your email administrator and refer them to the administrator help section of this topic so they can If the sender domain is in blacklist such as Spamhaus, the recipient mail server may reject mails from the server. The recipient's server isn't authoritative for the domain you're sending to. 2. Unless you simply made a typo in the email address, this is not something that you can fix, and must be addressed at the other end.

Certain mail servers have outbound mail filtering configured in them, which can block the emails going out from it, and leading to email rejection messages. LEARN MORE CONTACT US ServicesServer ManagementServer AdministrationEmergency Server SupportLinux Server ManagementWhat We DoSystem Software ManagementServer/Application InstallationIssue TroubleshootingServer HardeningPerformance TuningServer MonitoringEmergency SupportDisaster Recovery ManagementData MigrationDevOps CloseDesign and Development By strict adherence to Recipient address wrongly specified in the email Many often, the error is caused by a very simple reason - incorrect email address given in the email. Email filters set for the domain Some recipient mail accounts can have email filters or forwarders set.

All Rights Reserved. In addition to the MX records, email routing within the server should also be checked. This is shown below from the Edge server's Recipient Filtering properties: I tested this by running the following cmdlet:Test-EdgeSynchronization -VerifyRecipient zzz.domain.comSure enough, the result shows, NotSynchronized - Recipient doesn't exist in because the server is configured to not accept mail for that combination of sender and recipient addresses. –Jenny D May 14 '13 at 9:29 1 @JennyD If that's the case,

Open the users mailbox properties that is having the issue receiving the mail. You might not need to try all of them. You can verify this by comparing the address provided in the NDR with the address shown in the original message that is in your Sent folder. For more information What are Exchange NDRs in Exchange Online and Office 365 Share Was this information helpful?

Join & Ask a Question Need Help in Real-Time? Sounds DNS to me, as neilsr already states. Verify that you have only one MX record configured for your domain. Are there any restrictions within there that might prevent an outside source from emailing this user like "require that all senders are authenticated"? -Jay 2 Thai Pepper OP

Read: 550: No such user here – How to resolve email error 550 in cPanel/WHM Linux servers ‘550 5.1.1 User unknown' - How to fix this email error in Exchange, Postfix and Log in to an administrator account on the Office 365 portal at https://portal.office.com, and from the Dashboard, do the following: Check the Message Center to see if your organization has a Sign Up: Related posts: How to fix ‘550 5.1.1 : Recipient address rejected' error in Exchange and Postfix servers The curious case of Google tagging all mails as spam How to The recipient doesn't have the email address that you're sending to. 3.

In such cases, the email would fail to deliver to the recipient and would be bounced to the sender, with the error ‘550 5.1.1 : Recipient address rejected'. share|improve this answer answered Mar 25 '13 at 11:30 Michael Hampton♦ 125k19214428 It may also be rejected for policy reasons, e.g. The vast majority of email clients display l… Office 365 Exchange Outlook Exclaimer Advertise Here 685 members asked questions and received personalized solutions in the past 7 days.

Chris 0 Mace OP Jay6111 Jan 30, 2013 at 12:55 UTC Confused!

Your DNS record is stale and cannot be resolved by the recipient server. If send to one particular email address in my organisation from an outside source like gmail, hotmail, etc then the sender gets the bounceback error. 0 Mace OP We're here to help you with any queries. The error that the other server returned was: 550 5.1.1 User unknown ----- Original message ----- DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;         d=gmail.com; s=20120113;         h=x-received:subject:from:content-type:x-mailer:message-id:date:to          :content-transfer-encoding:mime-version;         bh=XrVtyB/I0+stfgEa6krlaBCIHkADpUu1ox/TQqQeW54=;         b=g0f1+PC4lLBmGQL/mcEBdayu/QeL3YnzgUKk5j1Ux5BKc6/qF5XD+/tTkP87SvXbT8

So my correct MX record was nullified for all their internal mail users, but remained correct for the rest of the world." The MX records were at fault. 0 LVL You can test your MX record and your ability to send email from your Exchange Online organization by using the Verify MX Record and Outbound Connector Test at Office 365 > Solution: Verify that SPF records exist for the sender domain and RDNS is configured correctly. Sign Up: Related posts: ‘550 5.1.1 User unknown' - How to fix this email error in Exchange, Postfix and Qmail servers The curious case of Google tagging all mails as spam

Deleted and readded the email address which is the primary one and tried sending again - same error from hotmail or Gmail. Receiving internal email ok. Issues with sender server The 550 5.1.1 error can be caused due to issues at sender server too: a. Solution 5: Make sure the NDR is related to a message you actually sent    If your Sent folder contains only messages you know you sent, then the NDR you received could

to Exchange servers, will end up seeing this error in the bounce message: 550 5.1.1 User unknown (in reply to RCPT TO command) Read: How to fix error “550-Please turn on SMTP I felt a bit of an idiot when i discovered that. GET STARTED LEARN MORE Hire Support EngineersOverviewFeaturesHow We WorkSupported TechnologiesSupport Plans CloseManaged Support We manage your help desk, live chat and phone support for one low fixed price per month. Choose Service health to see an overview of any issues.

I'm using a desktop version of Outlook 2007 and connecting through my ISP. You might not need to try all of them to get the message sent successfully. What can I do to fix this?    Here are 5 different solutions you can try. I'll check with their admin on point 1.

For more information, see Create DNS records at any DNS hosting provider for Office 365 and Customize an SPF record to validate outbound email sent from your domain.. Click on the "Mail Flow Settings" tab. There are couple of things that could have caused this error: The recipient address does not exist: you may possess an outdated email that was valid at one time. Bobcares provides Outsourced Hosting Support and Outsourced Server Management for online businesses.

I was allowed to enter the airport terminal by showing a boarding pass for a future flight. If the addresses don't match, contact the person you sent the original message to and ask them if they have an email rule to forward messages and ask if they know