Re: [cobalt-users] E-mail relay

[Alfredo <alfredo@xxxxxxxxxxxxxxx>]

> I've read to enter the "first 3 octets of the ISP's IP address" into
> the "Relay for the following Hosts/Domains" window in server admin.
> Where do I find that information? Exactly what do I ask PacBell for?
> And how do I get that information for every user's ISP? Is this really
> necessary?

Just FYI, the list archives has a lot of material on this very issue. 
Check it out...but...

If you allow relaying for a provider, you end up opening your server 
to everyone who uses that provider and, with any sizable provider, 
you're in for some serious spam problems -- spammers seem to have a 
genetic propensity to finding servers they can relay off of. Trust 
me, Mick, you do NOT want this! :-)

What a lot of people around here do is to tell clients to use their 
access provider's smtp server to send mail and just use their 
domain's server (the ones on your Raq) for pop and, logically, the 
return address on their email. Easy to configure and people who 
receive their mail won't know the difference and the mail doesn't 
even go through you server on the way "out". That's just what I do 
myself (and for all our clients and their users) and it works 
seamlessly.

Alfredo
--
People-Link/Institute for Mass Communications
www.people-link.org
Communications for a Better World...and for the People Who are Building One!
Members, Local 1180, Communications Workers of America, AFL-CIO