From: Samuel Jean <sj-netfilter@cookinglinux.org>
To: Varun Pabrai <varunsaa@gmail.com>, netfilter@lists.netfilter.org
Subject: Re: mails not coming thru'
Date: Sun, 05 Dec 2004 09:04:40 -0500 [thread overview]
Message-ID: <41B31578.6050106@cookinglinux.org> (raw)
In-Reply-To: <f02e560404120501483864a165@mail.gmail.com>
Varun Pabrai wrote:
>Then I added rules using packet filtering for
>sending and recieving mails as follows :
>
>accept if network protocol is TCP and destination port is 110
>
>
add: accept if network protocol is TCP and source port is 110
>accept if network protocol is TCP and destination port is 25
>
>
add: accept if network protocol is TCP and source port is 25
>saved and applied configuration and rebooted.
>
>But I am not able to send or recieve mails on client
>machines. Why ?
>
>
What happens is (I guess) your mailserver receives the packet, but when
answering, it gets dropped because the source port is now 25.
Same thing for your POP server.
>Anybody has any idea please help.
>
>
HTH,
Samuel
prev parent reply other threads:[~2004-12-05 14:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-05 9:48 mails not coming thru' Varun Pabrai
2004-12-05 14:04 ` Samuel Jean [this message]
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