550 Access Denied – Invalid HELO name

Error: 550 Access Denied – Invalid HELO name

All of our servers require SMTP authentication.

Make sure SMTP authentication is enabled in your email client configuration as that is the most likely reason for this error.

  • 1 Users Found This Useful
Was this answer helpful?

Related Articles

How do I access Webmail on Linux hosting?

On our Linux plans, if your domain has propagated, you can...

How do I configure my email client program, such as Thunderbird or Outlook?

In cPanel:Go to Email --> Email Accounts  Find the email account you are connecting to and...

What are my incoming and outgoing mail server addresses?

Both incoming and outgoing mail servers are: *servername*.fastcpanelserver.com or the server IP...

What POP3 and SMTP ports do I use?

When configuring your email client program, you can use port 110 for POP3 and port 25 or 26 for...

Configuring Outlook and other email clients on Windows hosting?

Standard POP3 Configuration:Account Type: POP3Incoming Mail Server: <use server hostname or IP...