By and large we are not getting caught by content filtering, but by DNS blacklists. For a while some sites were rejecting us because we were in the same IP block as a casino website. We have been getting blocked for not having a RDNS entry on outbound3.bullhorn.com [209.202.131.98], which is not true but no one seems to care. Either that, or they have some alternate definition of RDNS that doesn't allow us to send from a different server than we receive email into.
Right now we are not listed on any DNS blacklist I know of, but stupid ass sites like RR.com continue to home brew spam filtering schemes that make no sense. I sure could try to work it out with them, if they ever picked up the phone. How am I supposed to investigate issues when 25% of the people who are blocking us now refuse to even send an NDR. It's insane!
The bottom line is that it's getting harder to send email on the internet. I accept that. One simple solution is to let our clients send the email themselves. They don't do enough traffic by themselves to get blacklisted, and even if they do it's 100% their fault. Right now, any one of our clients can blacklist the whole lot. From a design standpoint, it does make sense. They are prepared to take that responsibility. It's not like we're an ISP; email is a small part of our service.
I was looking for more of a technical solution and less of a moral reproach. In an age when the email server you are sending from can be blacklisted for the actions of a single user, yes it does make sense to compartimentalize outgoing email.
-Chase
Chase Seibert | Network and Systems Engineer | Bullhorn Inc | 617.464.2440 x119 | www.bullhorn.com
-----Original Message-----
From:Travis Rabe [EMAIL PROTECTED]
To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>;
Sent: May 25, 2004 01:56:04 PM
Subject: RE: [IMail Forum] iMail outgoing rule to smarthost to another server?
From:Travis Rabe [EMAIL PROTECTED]
To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>;
Sent: May 25, 2004 01:56:04 PM
Subject: RE: [IMail Forum] iMail outgoing rule to smarthost to another server?
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED] Behalf Of Chase Seibert
>Sent: Tuesday, May 25, 2004 10:43 AM
>To: [EMAIL PROTECTED]
>Subject: RE: [IMail Forum] iMail outgoing rule to smarthost to another
>server?
>
>
>
>
>Yes, I do think there is a legitimate need for this. More and
>more of our outgoing email is getting caught in spam filters.
>Some of our customers want to send the mail through their
>servers because they do less traffic, and beleive they would be
>able to get the messages through.
>
Ahh..then this would be the wrong approach to fixing the problem. Examine
why they are getting caught. If it's due to content filtering - then it
won;t matter how it is sent or from where. If it is becasue you are
blacklisted....maybe you should determine why and then fix the problem.
Your solution is similar to asking a friend of your to deliver junk mail for
you toa house....bottom line is it's going to get tossed aside either way.
Travis
>
> -Chase
>
>Chase Seibert | Network and Systems Engineer | Bullhorn Inc.
>| 617.464.2440 x119 | www.bullhorn.com
>
>
>
>-----Original Message-----
>From:Sanford Whiteman [EMAIL PROTECTED]
>To: "Chase Seibert" ;
>Sent: May 25, 2004 01:39:11 PM
>Subject: Re: [IMail Forum] iMail outgoing rule to smarthost to
>another server?
>> What I am investigating is whether it's possible to set an outgoing
>> rule in iMail to act on mail with a specified header item and
>> smarthost all that mail to an outside server.
>
>No, you cannot smarthost based on sender information.
>
>> I know, for example, that I could redirect to an outside email
>> address. Can I just put an smtp server IP/DNS name in that redirect
>> field?
>
>Nope.
>
>> Any other ideas? Does declude/something else allow this?
>
>In theory, you could write a SendName that appends '@[1.1.1.1]' to the
>recipients of selected messages, using the 'percent hack' to create a
>source-routing setup. But do these people really have a need for this?
>Why send wildcard outgoing mail through another hop? Do they need a
>copy (if so, that can be accomplished through other means)?
>
>--Sandy
>
>
>------------------------------------
>Sanford Whiteman, Chief Technologist
>Broadleaf Systems, a division of
>Cypress Integrated Systems, Inc.
>e-mail: [EMAIL PROTECTED]
>
>SpamAssassin plugs into Declude!
>http://www.mailmage.com/products/software/freeutils/SPAMC32/downl
oad/release/
Defuse Dictionary Attacks: Turn Exchange Addresses into IMail Aliases!
http://www.mailmage.com/products/software/freeutils/exchange2aliases/downloa
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