Re: [cobalt-users] Raq3, bulk emailing and a lame DoS

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

Nathaniel Scott wrote:

> That's a pretty big mail list to tie up your server with.

Not true; I've got a customer who regularly does 35,000 mailings
directly from his RaQ3i.

> My only
> suggestion is to possibly bypass the Raq's sendmail and use a direct mailing
> program like Advanced Direct Remailer: http://www.mailutilities.com/adr/.
> Disclaimer:  I am not affiliated with these guys, nor have I tired their
> product yet - I just bookmarked the site incase I ever had to do a large
> mass mailing.

And are you aware of the problems using a problem such as adr can cause
you?

First, many ISP's specifically block all outgoing port 25 email that's
not going through their email servers, so it won't work with them.  The
main culprit:  megapop.net, and the hundreds of ISPs who use them for
their dialup connections.  Another culprit (AOL, with the most
subscribers of any ISP) which transparently redirects all outgoing
port25 mail directly to their own servers, no matter who you think
you're sending it to.

And perhaps even more important, all the ISPs (more added every day)
that don't allow port 25 mail into their network if it originates on a
dialup network.

So this program will buy more trouble than results imho.

> <snip from their site> ..."powerful remailer and mass mailer which send your
> message straight out to the recipient's mail server (without your ISP's SMTP
> server). ADR realizes multi-threaded direct delivery, and so works several
> times quicker than usual email client.."

In other words, it's a mail-server (a limited one at that) to use on a
dialup connection.

And more and more ISPs every day are blocking mail-servers using dialup
connections.

Bad idea.

Jeff
-- 
Jeff Lasman <jblists@xxxxxxxxxxxxx>
nobaloney.net
P. O. Box 52672
Riverside, CA  92517
voice: (909) 787-8589  *  fax: (909) 782-0205