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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Sendmail.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> mailscanner-bounces@lists.mailscanner.info [mailto:mailscanner-bounces@lists.mailscanner.info] <b>On Behalf Of </b>Chris Rees<br><b>Sent:</b> Thursday, June 07, 2012 12:14 PM<br><b>To:</b> MailScanner discussion<br><b>Subject:</b> Re: From Postmaster Email Bouncing<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p><br>On Jun 7, 2012 6:02 PM, "Al Cooper" <<a href="mailto:cooper@hmcnetworks.com">cooper@hmcnetworks.com</a>> wrote:<br>><br>> Hi All,<br>><br>> <br>><br>> A few weeks ago my server’s emails sent from the postmaster user started to bounce with the following error message:<br>><br>> <br>><br>> The following addresses had permanent fatal errors ----- <user>@<a href="http://domain.com">domain.com</a><br>><br>> (reason: 553 5.1.8 <<a href="mailto:root@server.domain.com">root@server.domain.com</a>>... Domain of sender address <a href="mailto:root@server.doman.com">root@server.doman.com</a> does not exist)<br>><br>> (expanded from: <<a href="mailto:root@server.domain.com">root@server.domain.com</a>>)<br>><br>> <br>><br>> It appears that my email is being blocked because there are not DNS records for the sub-domain <a href="http://server.domain.com">server.domain.com</a>.<br>><br>> <br>><br>> If this is correct how do I change the postmaster sender address from <a href="http://server.domain.com">server.domain.com</a> to <a href="http://domain.com">domain.com</a>?<br>><br>> <br>><br>> Or is there a better solution?<br>><br>> <br>><br>> Thanks for your help,<br>><o:p></o:p></p><p>Sendmail / Postfix / ?<o:p></o:p></p><p>Chris<o:p></o:p></p><p class=MsoNormal><br>-- <br>This message has been scanned for viruses and <br>dangerous content by <a href="http://www.mailscanner.info/"><b>MailScanner</b></a>, and is <br>believed to be clean. <o:p></o:p></p></div><br />--
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