[Fix] Email Error – 554 Message not allowed in Yahoo

Are you receiving a “554 Message not allowed” error when trying to send emails? If so, you’re not alone. Various issues can cause this standard email error, but fortunately, there are steps you can take to fix it. In this blog post, we’ll look at the 554 Message not allowed Email error in Yahoo, what causes it, and how you can fix it. So, if you’re experiencing this error, read on to learn how to resolve it and get your emails working again.

What is a 554 error message?

A 554 error message is generated by a mail server or SMTP (Simple Mail Transfer Protocol) server. It indicates that the receiver’s server did not accept the email message sent by the sender. This is usually due to an issue with the recipient’s mailbox, such as an incorrect address or a full inbox.

Causes of a 554 Error Message

There are several potential causes of a 554 error message, including:

  • Incorrect recipient address: If the recipient address is incorrect or not typed in correctly, the mail server will not be able to deliver the message.
  • Invalid email message: If the email message contains invalid characters or is too large, the mail server may reject it.
  • Blocked IP address: If the recipient’s server has blocked your IP address, the 554 error message will be generated.
  • Server or domain blacklisting: The email will be rejected if the recipient’s server has blacklisted the sender’s server or domain.

Steps to Fix Email Error – 554 Message not Allowed in Yahoo

Step 1: Check the Email Address

When you encounter an email error with the code 554 Message not Allowed, the first step is to check the email address you are sending the message. Ensure you have typed it correctly and the address is active. You should also check that the domain name is valid and that the recipient’s account is functioning properly. If there is a typo or the recipient’s account is no longer active, the message will not go through, and the 554 error will appear.

Step 2: Check the Spam Filter

When you encounter an email error with the code 554 Message not Allowed, the next step is to check the spam filter. Spam filters are used to protect users from receiving unwanted emails. Sometimes an email will be blocked by a spam filter if it contains content considered inappropriate or malicious. If the filter is blocking your message, you will need to update your filter settings so that you can send the message to the recipient.

Step 3: Check for Any Third-Party Security Software

When you encounter an email error with the code 554 Message not Allowed, the next step is to check for any third-party security software that may be blocking the message. If you have installed a security application on your computer or device, it may be blocking the message. You will need to disable or configure the application to allow the message to go through.

Step 4: Verify the Recipient’s Address

When you encounter an email error with the code 554 Message not Allowed, the next step is to verify the recipient’s address. Ensure the address is valid and the recipient is still active. You can do this by sending a test message to the address. If the message does not go through, the recipient’s address is invalid or blocked.

Step 5: Use a Different Email Client

Finally, if you can still not send the message after following the steps above, you should try using a different email client. Some email clients allow you to configure settings that make sending messages easier. It would help if you experimented with different clients to find one that works for you.

By following these steps, you should be able to resolve the 554 Message not Allowed error. If you still need help, then you should contact your email provider for further assistance.


If you encounter a 554 error message, there are a few steps you can take to troubleshoot the issue. First, check to make sure the recipient’s address is correct. If it is, make sure the email message is valid and does not contain any invalid characters. You should also check to ensure the recipient’s server has not blocked your IP address. If none of these steps resolves the issue, contact the recipient’s mail server administrator for assistance.

To avoid this error in the future, always double-check the recipient’s address before sending an email. Keep your email messages small and avoid sending messages with invalid characters or large attachments. Lastly, if you’re sending emails from a shared server, check if your server has been blacklisted. Following these tips should help you avoid the 554 error message in the future.

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Anthony Goldstein is an American author from California. He is best known for his work in the tech industry, where he has written extensively on topics such as artificial intelligence and the future of technology.

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