restrict users to internal email only

[Lennart]

Hi Thomas,

This can be done with Kolab's recipient access list, which I think is 
undocumented. You can find it in kolab-webadmin in a user's "Configuration".

The access list will allow or deny addresses ending with the rule. A 
deny rule starts with a "-". So I think you need to add to the user's 
Recipient Access List:

-
$mydomains

This denies all except for mails to internal domains.

Best,

Lennart

On 27-03-2022 08:43, Thomas Jensch wrote:
> Hello there,
>
> I am somewhat stuck - maybe you can point me in the right direction.
> I want to restrict some users, so they can only send mails to other
> users on the kolab system. Didnt find any documentation of how to do
> that as "Directory Manager" so I tried to restrict the users on
> postfix-level[0]. Although I followed the manual, so far, I can still
> send emails to whatever domain I like with the testuser.
> Sending restrictions are the priority, but it is also ok to completely
> lock down the user to internal email only.
>
> thank you very much
> Thomas
>
>
>
> [0] http://www.postfix.org/RESTRICTION_CLASS_README.html
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