While working on an updated Plesk 10 set, I noticed some strange behavior of Plesk in combination with Smartermail: It seems that Plesk can make user accounts with email addresses, that creates mailboxes in SM. When I create a 'mailaddress' it also creates a mailbox in SM. Adding a forwarder to the email address creates a dummy alias account that forwards to the forwarding email address I entered before. I guess this is to get around the single email address forwarding of SM. I assumed that creating an email address would be similar to creating an alias in SM but Plesk also creates a full email/userbox in SM. Meaning every alias counts towards my license limit. I see no option to create only a forwarding address. Did I miss something? Any reason why a full userbox needs to be created for a single alias address?