Creating a "mail gateway"

[Robert Brockway]

On Sun, 15 Jun 2008, Ian Petersen wrote:

> On Fri, Jun 13, 2008 at 2:21 AM, Robert Brockway
> <robert-5LEc/6Zm6xCUd8a0hrldnti2O/JbrIOy at public.gmane.org> wrote:
>> It's late and I wrote this very quickly.  Sorry if it isn't clear.
>
> It was very clear, but I didn't get that far.  I've got OpenVPN

The first time is always the hardest :)

> running in server mode on the VPS, and I thought I had it running in
> client mode on the Exchange server, but starting it on the Exchange
> server produces errors in the log file.  I hope to get things working
> tomorrow night, and then I'll move on to setting up an MTA.

Googling the error will often reveal a solution, otherwise feel free to 
post the error to this thread.

> Speaking of the MTA, thanks, Jamon--that HowtoForge link looks very promising.

Remember to make sure you reject undeliberable mail at the first MTA.  If 
you don't do this your MTA can be a source of backscatter spam.  If that 
happens it will find itself on an RBL[1] rapidly.

[1] Real-time Blackhole List, a common anti-spam technique.

http://en.wikipedia.org/wiki/Backscatter_%28e-mail%29

Another option which would likely fulfill your requirements is to use a 
Transparent SMTP proxy:

http://en.wikipedia.org/wiki/Transparent_SMTP_proxy

Personally I _like_ queueing the mail on a reliable server out on the 
'net.

Cheers,

Rob

-- 
"With sufficient thrust, pigs fly just fine..."
 	-- RFC 1925 "The Twelve Networking Truths"
--
The Toronto Linux Users Group.      Meetings: http://gtalug.org/
TLUG requests: Linux topics, No HTML, wrap text below 80 columns
How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists