A “554 Message Not Allowed” error typically occurs when an email server rejects an incoming message. This error message indicates that the recipient’s mail server or email account has blocked the email, usually due to spam or other security concerns. Here are some steps you can take to troubleshoot this error:
- Verify that the email address you are sending to is correct and active. Ensure that there are no typos or other errors in the email address.
- Check the content of your email message. Make sure that your message is not spam or contains any suspicious content that may trigger the recipient’s spam filter.
- Check your IP address reputation. If your IP address has a poor reputation due to past spam or security issues, it may be blocked by the recipient’s mail server. You can use online reputation tools like SenderScore or MXToolbox to check your IP address reputation.
- Contact the recipient to check if their mail server is experiencing any issues. It’s possible that the recipient’s mail server is down or experiencing other issues that prevent it from accepting incoming messages.
- Try sending the message from a different email account or service. If the issue persists, you may need to contact your email provider or IT department for further assistance.
