RE: looking into spamassassin mail proxy solution

Gary V-2 wrote:

> Matt Kettler-3 wrote:
>>
>> tuxbeagle wrote:
>>> I am trying to find a mail proxy/spamassassin solution for 2 situations.
>>> Situation 1 is
>>> Mail Server --> Mail Proxy --> Internet
>>>
>>> Situation 2 is
>>> Mail Client --> Mail Proxy --> Mail Server
>>>
>>> Mail Proxy is on a seperate server.
>>>
>>> I think MailScanner will work but after reading through part of the
>>> documentation still am not sure.
>> MailScanner isn't a proxy.
>>
>> However, you could still use it for Situation 1 depending on exactly
>> what "Mail Server" is, and what kind of stuff you are willing to set up.
>>
>>> Pop3Proxy might work but there doesn't
>>> appear to have been much work on it, in some time.
>>>
>> That mgith work for situation 2, but not situation 1.
>>
>> Quite frankly, doing anything of this sort using proxies is asking for
>> trouble.
>>
>> The normal way of integrating SA is to run it directly on your
>> mailserver, or insert another upstream mailserver to run SA on, and
>> forward all mail through that machine.
>>
>> ie:
>>
>> 1) MailServer with SA --> internet
>> 2) Mail Client ---> Mail Server with SA
>>
>> or
>>
>> 1) Mail Server (existing) --> New Mail Server with SA --> internet
>> 2) Mail Client --> Mail Server (existing) --> New Mail Server with SA
>>
>>
> These last two appear to be what I am trying to achieve, but am not sure how
> to set up the "New Mail Server with SA" and put it transparently between the
> "Mail Server" and internet.

There are numerous HOWTOs explaining how to build a gateway (relay) server using Postfix, amavisd-new and SpamAssassin. Google for those three nouns. It is very important to remember that a relay server must be configured to reject mail to invalid users for domains you host.

Gary V

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