handling spam from gmail.

[Marc Roos]

Yes thanks, I know, however the criteria for putting emails into this 
procedure is a different subject. Just wondered what people are doing.


-----Original Message-----
To: dovecot at dovecot.org
Subject: Re: handling spam from gmail.

On Thu, Jun 11, 2020 at 10:19:50AM +0200, Marc Roos wrote:
> 
> 
> I am sick of this gmail spam. Does anyone know a solution where I can 
> do something like this:
> 
> 1. received email from adcpni444 at gmail.com 2. system recognizes this 
> email address has been 'whitelisted', continue with 7.
> 3. system recognizes as this email never been seen before 4. auto 
> reply with something like (maybe with a wait time of x hours):
>    Your message did not receive the final recipient. You are sending 
> from a known spam provider
>    network that is why we blocked your message. Please confirm that:
>    - you are not a spammer and
>    - you have permission to use the mail adress you send your message 
to
>    - you and your provider agree to uphold GDPR legislation
>    - you and your provider are liable for damages when breaching any 
> of the above.
>    
> 
>    Click link to confirm and you agree with the above
>    https://www.domainwithoutletsencryptcertificate.com/asdfasdfadsfaf
> 
> 5. sender clicks confirm url
> 6. email address is added to some white list.
> 7. email is delivered to recipient.

If you do this rgularly enough, sending these messages to what are 
likely forged return addresses, you might just end up being classified 
as a spam sender yourself.

-- hendrik

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