Error SMTP in order email notification

[elmaluf]

Hi:

 

I have installed oscommerce in a Windows host. When I try to make a shop. Me, as a client, receive a notice by email but the administrator doesn't.

 

I specified an email in the store email address, and other two in "Send exra Orders email to", but nobody receive notifications when somebody shops a product.

 

Can somebody help me?

 

I receive this notice:

 

Subject: Undeliverable: Procesar Pedido

 

Your message did not reach some or all of the intended recipients.

 

Sent: Tue, 12 Apr 2011 13:29:29 -0300

Subject: Procesar Pedido

 

The following recipient(s) could not be reached:

 

User1<[email protected]

Error Type: SMTP

Remote server (xx.xxx.xx.xx) issued an error.

hMailServer sent: RCPT TO:<User1<[email protected]>

Remote server replied: 555 5.5.2 Syntax error. d25si17714728and.121

 

 

 

Thank.