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- Fix NDR error 550 5. 7. 1 in Exchange Online - Exchange
Another solution would be to remove the license, but then you would need to create a mail flow rule (also known as a transport rule) to prevent the user from receiving email messages Otherwise, the user would continue to receive messages for about 30 days after removal of the license
- The message was rejected by organization policy. (Which policy?)
You may refer to the article to troubleshoot this issue See under OOF issues related to transport rules : https: learn microsoft com en-us exchange troubleshoot email-delivery understand-troubleshoot-oof-replies#troubleshoot-oof-issues
- SMTP Error 550 5. 7. 1 – How to Resolve [SOLVED] - Warmy Blog
How can I fix “550 5 7 1 relaying denied” or “550 5 7 1 command rejected”? These are fixed by email authentication (SPF, DKIM, DMARC) on your domain as well as making sure you’re trying to send from a whitelisted IP domain
- TRANSPORT. RULES. RejectMessage; the message was rejected by organization . . .
Any one can help on this issue This usually means the receiving email server thinks you're a spammer Could be related to the content of your emails, to your IP address, or that too many users have marked your previous emails a spam Either way it's not a programming question and hence off-topic here See How to Ask Bounce Email Event Occurred
- Email Blocked by my policies, but which policy? Error 550 5. 7. 1
An email was rejected by one of my mail flow rules, and before I whitelist it, I want to know which rule it violated This is the error I get in the Office 365 Message Trace 550 5 7 1 TRANSPORT RULES RejectMessage; the message was rejected by organization policy
- 550 5. 7. 1 TRANSPORT. RULES. RejectMessage; the message was rejected by . . .
If only the specified external sender occurs, and an anti-spam rule is created in the organization You can try to add external domain into “The sender’s domain is” exception of anti-spam transport rule
- 550 5. 7. 1 TRANSPORT. RULES. RejectMessage; the message was rejected by . . .
The error message you describe as "550 5 7 1 Transport Rule RejectMessage; Message was rejected by organization policy" strongly indicates that there is some form of mail flow rule preventing the message from being transmitted
- How to Manage Mail Flow Rules in Exchange – TheITBros
If you trace an email in the Exchange transport logs, you can see which transport rule was applied to the email: Reason: [{LED=550 5 7 1 TRANSPORT RULES RejectMessage; the message was rejected by organization policy}; Transport rule: ‘Block outgoing email to Gmail’
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