help me with my e-mail problem!

I have an adress where I can send and recieve to just fine however certain people cannot send to me. They always get this error:

The original message was received at Thu, 19 Feb 2004 11:08:58 -0500

----- The following addresses had permanent fatal errors -----
<staff@canadaracing.ca>

----- Transcript of session follows -----
554 permanent problems with the remote server
The server is leased form EV1 servers and I manage everything myself. I have tried deleting and recreating the e-mail account but it didn't help.

 

 

 

 

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