Hi, my name is Cesar and I have a Plesk installed on CentOS 5.4. When I try to send email using telnet smtp.expresso.com.br 25, using email@example.com account and I receive a strange email content: DomainKey-Status: bad format X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on web1.expresso.net.br X-Spam-Level: ***** X-Spam-Status: No, score=5.4 required=7.0 tests=MISSING_DATE,MISSING_HB_SEP, MISSING_HEADERS,MISSING_MID,MISSING_SUBJECT autolearn=no version=3.2.5 Received: (qmail 20220 invoked from network); 10 Dec 2009 11:01:55 -0200 Received: from filomenoestampare.com.br (184.108.40.206) by terramaqcomercial.com.br with SMTP; 10 Dec 2009 11:01:48 -0200 teste a. But I donÂ´t use any these domains filomenoestampare.com.br and terramaqcomercial.com.br. Why I receive this email with others domains and why the email lose from and to address? How can I fix this problem? Regards.