Table of Contents
What does this mean 550 5.4 1 Recipient address rejected Access denied?
1 error code in Email non-delivery reports in Exchange Online it suggests: “The mail server that’s generating the error doesn’t accept mail for the recipient’s domain. This error is generally caused by mail server or DNS misconfiguration.” To put it simply, the issue is on the recipient end and no on your end.
What is error code 550 in email?
550 Blocked error or 550 Requested action not taken: mailbox unavailable is an SMTP (Simple Mail Transfer Protocol) error code. Put simply, this message means that the email you sent was blocked by the recipient’s email hosting server, and returned to you.
How do I fix a rejected email?
Try sending the email again later. If you keep getting the error: Check if there are any mistakes in the recipient’s email address. Contact the customer support team of your recipient’s email provider.
What is error 550 5 1 1 1 User unknown?
The error ‘ 550 5.1.1 User unknown ‘ is commonly noticed in Microsoft Exchange servers. It can happen either with a single mail account or a distribution group of email addresses. Microsoft Exchange 2010 has implemented a security parameter which require that all senders are authenticated, to prevent spamming.
What does the 550 error message mean?
‘550 5.1.1 User unknown’ is one of the common issues reported by users sending mails to Exchange servers. 550 error means there is some problem with the recipient server which makes it unable to deliver the mail.
What does 550 51 mean on a server?
What does 550 5.1.1 error mean? The client typically receives a 550 5.1.1 code as a reply to RCPT TO command. It is an error code that usually stands for some issue with the recipient server. The most frequent error message is “ User unknown ”.
What does 550 51 mean in RCPT?
What does 550 5.1.1 error mean? The client typically receives a 550 5.1.1 code as a reply to RCPT TO command. It is an error code that usually stands for some issue with the recipient server. The most frequent error message is “ User unknown ”. In most cases, this is because the recipient address does not exist.