Multidomain Mailhosting on one physical host

[Uwe Kiewel <sa...@kiewel-online.de>]

Hi there,

on my server, there are two mail domains hostet. Spam and virus check is done 
by amavis. Amavis uses SpamAssassin 3.1 and H+BEDV Antivir in current 
versions.
The administration front end for SpamAssassin is MaiaMailguard

Well, lets say the hosted domains are dom1.org and dom2.org

My problem is:

User Sam and Joe has internet access via DSL with a dynamic ip address. The 
mail going from sam@dom1.org to joe@dom1.org is identified as SPAM because 
the sending ip address is the dynamic dial up address.

The same happens, if sam@dom1.org send a mail to joe@dom2.org.

The problem apperars only for mail traffic within the hosted domains on these 
box.

How do I solve this problem?


Uwe

Re: Multidomain Mailhosting on one physical host

[Uwe Kiewel <sa...@kiewel-online.de>]

On Wednesday 01 March 2006 12:21, you wrote:
> Have you tried whitelisting the problem addresses?
>
> whitelist_from user@dom1.org
>

In this case, what happens, if a spammer fake the "from" and use the 
whitelisted address?

Uwe