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On Mon, Feb 20, 2012 at 02:35:10PM +0100, Dragan Zubac wrote:
> Postfix is running on a server with domain : domain.com
I'm also willing to bet that you do not own domain.com. Don't use
real Internet names as examples. Example.TLD in almost any top-level
domain, or {first,second,third,...}.example are safe.
> Is it possible to have Postfix configured to forward emails only
> if To,CC or BCC fields contain the following domains :
>
> - test.com
> - example.com
By "forward" you probably mean you're using virtual_alias_maps with
target addresses going externally. Another thing: you should always
describe the actual problem you are trying to solve. Here you gave
only your idea for a solution.
The answer is no. Postfix is not capable of making routing decisions
based on mail content. There are header/body_checks(5) mechanisms
available, but in general, you should not make routing decisions
based on mail content. And in this case there is no way to make that
conditional decision anyway.
Your only possible answer to do what you asked is an external content
filter as SMTP proxy.
http://www.postfix.org/SMTPD_PROXY_README.html
> Forwarding emails that has To,CC or BCC fields containing
There is no such "field" as BCC. If a client submits mail with a
header, "^Bcc: ", the MTA will strip it.
> destination addresses for other domains than specified should
> be rejected.
Also not a good idea. Look at this mail for an example. The headers
tell us it was To: postfix-users@postfix.org, and neither to you nor
me. Yet we both see it in our mailboxes!
If I correctly guessed the real goal above, there is no simple answer
for you. Indeed, same envelope forwarding to addresses outside your
control is not safe and workable in this day and age.
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