emails domains and co-domains question bug or a feature

Why is email aliases so strangely generated.

Example:

I create site www.dummy.net with dns records.
System creates in dns domain dummy.net with www A record.
When I add email account [email protected] (account user01)
in virtusertable automatically is generated [email protected]

Normally, 99% people doesn't have email [email protected]
but [email protected]. To fix this problem I added in co-domain
dummy.net and now there are two entries in virtusertable for
account user01 [email protected] and [email protected]

My question is what do I need to change in code and where so that
aliases are generated ONLY for sites specified in co-domains I realy
don't need alias @www.dummy.net. If I want one I can always add
it in co-domain.

One more question, where in GUI can I see what version of ispconfig
is installed.

Thanks.

 

That's the default behaviour because sometimes there are people that need [email protected]. If you don't need it, you can set "External Mailserver" for that specific domain (on the "Options" tab), and it will be excluded from the Postfix configuration). BTW, there is no need to create a Co-Domain www.dummy.net if you have www.dummy.net on the "Basis" tab.

Tools -> Software Version.

 

Thanks

External mailserver option works fine. Can you point me in what file I can
change that default option for www.domins is external mailserver.

Thanks