Unable to recieve emails

Unable to recieve emails

When I try to send an email to the email address I have with zoho from my gmail or live (now hotmail) email accounts I get an unable to send error. However I did try sending an email from another zoho email (on a different account) and that got through fine.

I can still send emails from the account fine though. 

The exact error (returned on gmail) is:

[quote]
Delivery to the following recipient failed permanently:


     [ zoho email]

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain  quoole.uk  [198.91.81.8].

The error that the other server returned was:
550-Please turn on SMTP Authentication in your mail client.
550-mail-ig0-f170.google.com  [209.85.213.170]:35751 is not permitted to relay
550 through this server without authentication.
[/quote]
--
Nathan Jones
Quoole Media

Web:quoole.uk