Invalid_address@.syntax

[stephosting.com]

hello, we cannot send emails to any account, we receive this error:
INVALID_ADDRESS@.SYNTAX
this is the header:
From: Undisclosed Recipients
Message-ID: <8900175B31A470E81F8CA5B97D396.MAI@localhost>
Precedence: bulk
Received: from localhost ([127.0.0.1]) by localhost with MailEnable ESMTP; Mon, 27 Jun 2005 13:58:16 -0500
Subject: Message Delivery Failure
To: info@bettermarch1.com


some idea?

 

[OlegB]

Check settings for SMTP connector within MailEnable. Actually I did'nt face with such problem in Plesk 7.5.3.

 

[stephosting.com]

thank you OlegB.
I check the config, we have 2 server with plesk (1 plesk 7 and the another 7.5), mailenable smtp config is equal on both, i really dont know whats the problem.