Re: [gentoo-server] Disclaimer to forwarded mails to external domain?

["Vinícius Ferrão" <viniciusferrao@if.ufrj.br>]

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I don't know what happened to my last message but it was never delivered. I'm sending it again:

=====================

Answers above:

On Jul 31, 2012, at 12:33 PM, Michael Orlitzky <michael@orlitzky.com>
wrote:

> On 07/31/12 01:57, Vinícius Ferrão wrote:
>> Hello dudes,
>> 
>> I'm considering to implement a new feature in my Postfix Mail
>> Filtering Gateway.
>> 
>> It would be great to add a disclaimer note to forwarded mails to an
>> external domain. Since I'm already running amavisd-new, with all his
>> friends, I was thinking to invite alterMIME to the party.
> 
> Is this so that people won't mark those messages as spam (thus pinning
> the blame on your mail server)?
> 
> If so, let me assure you that it will be ignored. I've even called some
> of our customers with forwarded addresses on the phone and personally
> asked them to stop marking stuff as spam. They still ignore me.

Actually we have user that automatic redirect messages to their personal accounts. And this behaviour is not 100% approved by the university. So I want to put a disclaimer in those people, as example: john@university.com redirects to john@gmail.com. I want to put a disclaimer in *ALL* messages redirected to external domains.

> 
>> The tricky part is how to detected which messages are automatically
>> forwarded to an external domain.
> 
> If this is a filtering gateway, I'm guessing all of your recipients are
> listed in relay_recipient_maps? If so, you should be able to override
> the default_transport (which defaults to smtp:).
> 
> For example, you could set up a disclaimer-only instance of amavis on
> port 10029, and then set the default_transport to
> smtp:[localhost]:10029. I would beware of unintended consequences,
> though. You're liable to stick a disclaimer on some things by accident.

There's no recipient check in my mail filtering gateway. I leave this job to my final destination. It's not easy to get the final destination since we have some different end destination servers and a separate mailman server.

I can't really understand your example: in this situation everything will be "disclaimed"; and I just want to modify messages to people that receive their corporate emails in their personal account.

Thanks for you help and sorry about the delay to answer your message.
Vinícius

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