Docs Error Library Authentication Errors SMTP Error 530

SMTP Error 530

What Is Causing This Error?

SMTP Error 530 typically indicates an authentication problem when sending emails, often due to incorrect login details. However, it can also signify issues like the sender’s IP being blacklisted or the recipient’s email address being invalid. This error reflects either a failure to authenticate with the email server or being blocked due to server policies or security measures.

Resolving the Error – Solution

To address SMTP Error 530:

  • Verify Login Credentials: Ensure that the username and password in your email client are correct and up to date.
  • Check for Blacklisting: Determine if your IP address has been blacklisted by the recipient’s server. If so, follow the necessary steps to request removal from the blacklist.
  • Validate Recipient Email Address: Confirm that the email address of the recipient is correct and active.
  • Review Server Authentication Requirements: Make sure your email setup complies with your server’s authentication protocols. If needed, adjust settings for ports and security protocols.
  • Use an SMTP Plugin if Necessary: For WordPress sites, using a plugin like Easy WP SMTP can help manage SMTP settings and ensure proper authentication for email sending

That’s it! Now you know the common causes of the 530 error and how to resolve it.

If you’d like to learn how to troubleshoot other common errors, check out the following tutorials: