[olug] *sending* e-mail on a non-SMTP port?

[David Walker]

I like to use ssh for this. The line below forwards port 25 over an ssh 
connection.
ssh -g -L 25:localhost:25 mail.linder.org

But if you run this on your firewall it will also external connections to port 
25.  You'll probably want to block external connections to port 25 using IP 
tables or run this on a non-firewall machine.

For Postfix you could try "relayhost = mail.linder.org:65537" in your main.cf 
although I haven't tried it myself.

On Monday 04 April 2005 01:10 pm, Daniel Linder wrote:
> Guys,
>
> I want my home firewall (on the Cox at Home network) to send log messages to
> my main server located at a data center.  The @Home network has outbound
> port 25 blocked -- thankfully! -- to guard against home machines being
> used as spam-bots.
>
> Is there a way to setup Postfix to use my external box as a "smart relay",
> but it has to use a port other than port 25 to do this.  Anyone have any
> hints or FAQ links?
>
> Dan
>
>
> - - - -
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