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ra大哥,请看看这个错误,我用dnsreport检查我的邮件系统时报告的。<br>
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<table border=0 cellspacing=0 cellpadding=3><TR><TD><b>FAIL</b></TD><TD><font color="black"><b>Acceptance of NULL <> sender</b></font></TD><TD>ERROR: One or more of your mailservers does not accept mail from "<>". Mailservers are required by <A HREF="http://www.dnsstuff.com/pages/rfc1123.htm" TARGET=_blank><font color="#0000ff">RFC1123</font></A> 5.2.9 to accept mail from "<>". By refusing this mail, you will never get reject/bounce messages, or return receipts, and you may get other mail server admins upset at you if they have to deal with your bounce messages.<br>
ERROR: mail.xxxx.com's MAILFROM <> response: 501 input error. .<br>
ERROR: mail2.xxxx.com's MAILFROM <> response: 501 input error. .<br>
</TD></TR><TR><TD><font color="green"><b>PASS</b></font></TD><TD>Acceptance of postmaster address</TD><TD>OK: All of your mailservers accept mail to <A HREF="mailto:postmaster@xxxx.com">postmaster@xxxx.com</A> (as required by <A HREF="http://www.dnsstuff.com/pages/rfc822.htm" TARGET=_blank><font color="#0000ff">RFC822</font></A> 6.3, <A HREF="http://www.dnsreport.com/tools/rfc.ch?detail=1123" TARGET=_blank><font color="#0000ff">RFC1123</font></A> 5.2.7, and <A HREF="http://www.dnsreport.com/tools/rfc.ch?detail=2821" TARGET=_blank><font color="#0000ff">RFC2821</font></A> 4.5.1).</TD></TR><TR><TD><font color="green"><b>PASS</b></font></TD><TD>Acceptance of abuse address</TD><TD>OK: All of your mailservers accept mail to <A HREF="mailto:abuse@xxxx.com">abuse@xxxx.com</A>.</TD></TR></table><br>
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