<div dir="ltr">What do the bounce messages say?</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Mar 29, 2013 at 4:12 PM, keith smith <span dir="ltr"><<a href="mailto:klsmith2020@yahoo.com" target="_blank">klsmith2020@yahoo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><table cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top" style="font:inherit"><div><table border="0" cellpadding="0" cellspacing="0">
<tbody><tr><td style="font:inherit;font-family:arial;font-size:10pt"><br>Hi,<br><br>I am puzzled.<br><br>I cannot receive or send email when I have IP table on, except to Yahoo.com. I get bounded emails when trying to send. <br>
<br>As soon as I stop IPTables I start receiving emails. <br><br>CentOS 6.4, Postfix, dovcott, Spamassassin, virtual host server running on my business cox account (no blocked ports).<br><br>Router ports that are open 21,22,25,53,80,143,443,587. (port forwarding)<br>
<br>IPTable config:<br><br># Generated by iptables-save v1.4.7 on Fri Mar 29 14:08:56 2013<br>*filter<br>:INPUT DROP [0:0]<br>:FORWARD DROP [0:0]<br>:OUTPUT ACCEPT [4:432]<br>-A INPUT -s <a href="http://192.168.20.0/24" target="_blank">192.168.20.0/24</a> -p tcp
-m tcp --dport 22 -j ACCEPT<br>-A INPUT -s x.x.x.x/32 -p tcp -m tcp --dport 22 -j ACCEPT<br>-A INPUT -s x.x.x.x/32 -p tcp -m tcp --dport 22 -j ACCEPT<br>-A INPUT -p tcp -m tcp --dport 25 -j ACCEPT<br>-A INPUT -p tcp -m tcp --dport 53 -j ACCEPT<br>
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT<br>-A INPUT -p tcp -m tcp --dport 143 -j ACCEPT<br>-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT<br>-A INPUT -p tcp -m tcp --dport 587 -j ACCEPT<br>-A INPUT -i lo -j ACCEPT<br>-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT<br>
COMMIT<br># Completed on Fri Mar 29 14:08:56 2013<br><br><br>Thank you for any insight.<br>Keith<br><br>------------------------<br>
Keith Smith</td></tr></tbody></table></div></td></tr></tbody></table><br>---------------------------------------------------<br>
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