I found a workaround that works for me until the feature is finally available.
The forwardings are stored in the file /etc/postfix/virtual.
Because Enhance overwrites that file when adding/updating/removing E-Mail-Adresses, i created a second virtual file /etc/postfix/virtual-custom with one line per forwarder.
@example.com office@example.com
@example2.com external@gmail.com
If the domain example.com is within your Enhance make sure, that the Mailbox exists. Or use external Domains like in line 2.
In /etc/postfix/main.cf we have to tell Postfix about this second file, that is computed when in the original virtual file no match was found.
Change
virtual_alias_maps = hash:/etc/postfix/virtual
To
virtual_alias_maps = hash:/etc/postfix/virtual, hash:/etc/postfix/virtual-custom
Then we have pass the new file to Postfix and reload it with postmap /etc/postfix/virtual-custom && service postfix reload This has to be done on each change of that file.
Now we have a Catchall for poor people :-)
It would be cool when Enhance let us enter an asterisk * when creating a Mail Account (of type Forwarder) and it adds the correct line into the virtual file.
