Re: [pmfirewall] Is it possible to block Email with Ipchains?

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From: MaD MaN (joelf@ptd.net)
Date: Tue May 22 2001 - 11:10:05 PDT

If it was blocking e-mail I think the only thing you would see is that I was not
accepting the SMTP port which is port 25. That would stop you from sending
e-mail. I do not think however that the script would stop you from doing that.
I am sure that it was configured so that your machine would accept source ports
of 25. I hope this helps.

joel

Daniel Ray wrote:

> At first i though this was a DNS issue.
>
> Since the email is not even leaveing my server.
>
> I call my DNS people . And they told me that the ISP,
>
> I am trying to connect to, didn't have a reverse DNS record
>
> (PTR) record in place for the IP address of their mail server.
>
> well i connected UUNET and there was a problem . and they corrected it
>
> But i still can't email that isp at all.
>
> So my Question stands.
>
> Can ip chains ( if configured so ) stop me from sending email to certian ip
> addresses .. or even .nets?
>
> and if so .. what would i look for in the ipchains.
>
> Thanks for all the help.
>
> Daniel
>
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