Delivery to catcall mailbox if mapped mailbox doesnt exist

[Glenn]

Is it possible to have a domain (catchall) mailbox and mapped mailboxes on the same domain for example some users mail will be downloaded to a local mail servers while others will collect mail directly from theie mailbox on the live mail server ?

[Administrator]

you could try to use alias.

[Glenn]

Yes alias works (-; you just have to make a mailbox with a different name and alias the correct mail address to that mailbox , thanks Admin