IPTable interfering with email.

[keith smith]

I lost those bounced messages when I reconfigured the mailbox.  Thank you for your help!

------------------------

Keith Smith

--- On Sat, 3/30/13, Andrew Harris <tuna at supertunaman.com> wrote:

From: Andrew Harris <tuna at supertunaman.com>
Subject: Re: IPTable interfering with email.
To: "Main PLUG discussion list" <plug-discuss at lists.phxlinux.org>
Date: Saturday, March 30, 2013, 11:34 AM

What do the bounce messages say?

On Fri, Mar 29, 2013 at 4:12 PM, keith smith <klsmith2020 at yahoo.com> wrote:



Hi,

I am puzzled.

I cannot receive or send email when I have IP table on, except to Yahoo.com.  I get bounded emails when trying to send.  


As soon as I stop IPTables I start receiving emails. 

CentOS 6.4, Postfix, dovcott, Spamassassin, virtual host server running on my business cox account (no blocked ports).

Router ports that are open 21,22,25,53,80,143,443,587. (port forwarding)


IPTable config:

# Generated by iptables-save v1.4.7 on Fri Mar 29 14:08:56 2013
*filter
:INPUT DROP [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [4:432]
-A INPUT -s 192.168.20.0/24 -p tcp
 -m tcp --dport 22 -j ACCEPT
-A INPUT -s x.x.x.x/32 -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -s x.x.x.x/32 -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 25 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 53 -j ACCEPT

-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 143 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 587 -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

COMMIT
# Completed on Fri Mar 29 14:08:56 2013


Thank you for any insight.
Keith

------------------------

Keith Smith
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