What is a 550 blocked?

What is a 550 blocked?

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 550 relay not permitted?

How to fix this problem:

  1. Refer to our visual step-by-step troubleshooting guide for your specific mail client.
  2. Follow the settings to access the Outgoing SMTP server.
  3. Choose the option to require authentication using a password.
  4. Use the same user name and password for both the incoming and outgoing servers.

What is 550 junkmail rejected?

When you receive an Error 550 Message Rejected (or blocked) when trying to send an email, this means that a spam filter has blocked the message. This error is occurring because your email domain is appearing in a Real-time Blackhole List (RBL).

What is 550 relay not permitted?

When a user receives a 550 relay not permitted error, it means they are not permitted to send an email via the server that they are attempting to send an email from. When users send an email from their Internet Service Providers (ISP) mail servers, they generally do not have to authenticate themselves.

Is not permitted to relay 550 through this server without Authentication?

1.1) or Server error: 550 relay not permitted, authentication required / Relay not allowed The most common cause is that authentication is missing in the outgoing mail settings. With outgoing mail, your e-mail address / login and corresponding password are also required.

What is 550 permanent failure for one or more recipients?

This is an SMTP(Simple Mail Transfer Protocol) error code and hosting users get this error when the email hosting server of the recipient blocks the emails they send. With this article, we will look into why the “550 permanent failure blocked” error appears and the possible ways to resolve the issue quickly.

What does 550 rejected by header based manually blocked senders mean?

550. Rejected by header based Blocked Senders – Block policy for Header From. A Block Sender Policy has been applied to reject emails based on the Header From or Envelope From address. Delete or change the Blocked Senders policy.

Why do I get a 550 blocked error?

What are the causes of a 550 Blocked error? The 550 SMTP error is one of the most common error codes you may encounter. For this particular error code, here are some of the possible causes: Your IP address is blocked by the recipient’s email hosting server.

Why is my SMTP email status code 550?

It’s possible that the server IP or the domain that you use to send the emails is blacklisted by an anti-spam filter. Some email systems are known to reject emails from blacklisted domains and IP automatically with the 550 status code.

Why is my IP address blocked from email?

Your IP address is blocked by the recipient’s email hosting server. Your email address has been compromised and has been blocked by recipient’s hosting server. You are sending an email using an ISP that is different to the one you are currently logged on to.

What to do when you get 550, 553 or relay prohibited error message?

When you get a 550, 553 or relay prohibited error message, then you need to enable authentication for your SMTP server configuration in Outlook. The first step is to check which IP address is being reported. In most cases, this is either your IP address or the IP address of the mail server that is trying to deliver your message.