[TriLUG] e-mail server class

[Magnus]

On Monday, July 28, 2003, at 12:09  PM, kafuin wrote:

> hopefully this message will demonstrate that, thanks to saturday's 
> class, i
> now have my e-mail server correctly configured.  thank you jtower for 
> the
> extra bit of help on sunday ;)

Indeed, it *is* working right.

However, after looking at your headers, I think there is some room for 
further improvement.  It looks like you're forwarding all of your 
outbound mail to the RR MTA.  This is only necessary for a few 
braindead ISP's that block incoming mail originating from all broadband 
users.  In Postfix you can set up a transport map so that, for example, 
all mail for *@*.rr.com or *@aol.com gets routed through your ISP's 
relay.  All other mail can go directly from your host to the final 
destination.  This improves transit time, and reduces your dependency 
on the sometimes broken RR servers ("If you want something done 
right...").

Take a look at the thread starting with this message on how to address 
the broken ISP scenario more effectively with Postfix:
	http://www.trilug.org/pipermail/trilug/Week-of-Mon-20030331/015384.html

--

C. Magnus Hedemark
http://trilug.org/~chrish
PGP Key fingerprint = 984D 9A88 3D60 016F BE01 1506 60FB 85E1 9ABD 96F6
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