Multidomain Kolab 16 cannot send email from domain alias to primary domain

L.S. ,

I don't understand the submission policy and how to change/configure it:

I've got 3 domains and in one of the domains I have setup an alias domain.

As per instructions I made sure to have a ldap/tor.nl/ folder with 
specific configuraion files (mydestination.cf, local_recipients_maps.cf, 
etc) to make sure the alias domain of tor.nl is found and working.

Suppose the alias domain is otherdomain.nl.

I now want to send an email from [email protected] to [email protected]

I get the following error (casue by the submission policy:

check_table_result: unix:private/submission_policy REJECT Sender 
[email protected] is not allowed to send to recipient [email protected] 
policy query

Why is this? Is this because [email protected] is en alias? That 
cannot be the only reason. I can send an email from [email protected] 
to [email protected] (which happens to be an alias of [email protected]).

Where are the rules defined and how to change them.

Cheers,

Tom

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Tom Reijnders
TOR Informatica
Chopinlaan 27
5242HM Rosmalen
Tel: 073 5226191
Fax: 073 5226196