Email error message "Server Response: '550 Access denied - Invalid HELO name' "

"The message could not be sent because the server rejected the sender's e-mail address. The sender's e-mail address was ' ' Subject 'test', Account: '', Server: '', Protocol: SMTP, Server Response: '550 Access denied - Invalid HELO name (See RFC2821', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC78"

I get the above error message, what do i do?

First thing is to check your outgoing server port number. It should be set to 26 (it's normally 25 by default).
Secondly make sure that the "My outgoing server requires authentication" check box is ticked (use the same username and password as for your incoming mail server). These settings are usually located under "Outgoing Server" tab in advanced account settings.

For more information on how to setup you email visit our guide.

Was this answer helpful?

 Print this Article

Also Read

How do I manage my email accounts?

Log into cPanel (as described here), then click on the Email Accounts icon near the left top of...

Email Account Settings and Setup Guides

Your email settings will be very similar for all mail programs.In the following example, please...

I don't want web based email; do I have to use it?

No, your web based email and organizer is an optional extra. It's included for free, and if it...

I can send email OK, but I can't receive it!

This could be one of any number of issues, but the first things to check are: Type of email...

Mailing Lists Use

Like any web hosting provider, we provide access to many different systems and sub-systems, with...