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From: Trevor Antczak (no email)
Date: Thu Mar 01 2007 - 17:58:23 EST
Since I sent this, I've realized that this same issue is also affecting
another problem. We're affiliated with a university, and many of the staff
have university e-mail addresses. Most of them forward those university
addresses to lite3d.com addresses. When a mail is sent from a lite3d.com
address to a forwarded university address, it bounces. The university
e-mail admin and I have been trying to figure out why for quite a while.
Now that I've been working on this new issue, I think I've just figured out
that it's actually the same problem. As far the server sees things mail is
coming from outside the network (the forward from the university) claiming
that it's from inside the network (the original sender's e-mail address is
internal). Now I really need to figure this out.
Trevor
On 3/1/07 4:13 PM, "Scott Kitterman" <> wrote:
> On Thursday 01 March 2007 17:09, Trevor Antczak wrote:
>> Hello,
>>
>> Alright, with the understanding that what I want to do here is a violation
>> of good policies, I have question. Here=B9s the background:
>>
>> I run a mailserver for my company here (lite3d.com). We=B9re a high tech
>> typ= e
>> place, and most of our users have laptops and high speed networks at home.
>> They=B9d like to be able to do work from home, but the problem is that most
>> o= f
>> them (us really) have Cox highspeed internet, which will not allow you to
>> hook up to remote mailservers through its network. You have to send all
>> o= f
>> your mail through smtp.east.cox.net or it doesn=B9t leave their network (I
>> suppose one could set up a mailserver that listens on a non-standard port
>> and bypass this, but it=B9s probably not worth the effort). Cox will allow
>> you to use whatever you want for a =B3from=B2 or =B3reply-to=B2 header, so
>> at least one of my users had the bright idea to setup an alternate SMTP in
>> her clien= t
>> to use the Cox server, but put her business address in the =B3from=B2
>> header. It works fine UNLESS she tries to send mail to someone local to our
>> domain.
>
> A better answer would probably be to enable the submission port (587) and have
> your users submit mail to your server that way.
>
> Scott K
-- Trevor Antczak Senior Systems Administrator LITE 337-735-1351
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