How does NetLinker handle email with mulitdrop mode?
If you get a static IP address at your ISP, you can chose ETRN mail server mode. This option does not require you to set up a specific mailbox at your ISP. Your ISP only needs to add a MX record for your mail server.
With multi-drop mode, NetLinker will retrieve mail from your ISP Œs mail server and forward it to local delivery system. All mail addressed to anyone at your domain name, e.g. yourcompany.com,  is stored in the multi-drop mailbox (e.g. yourcompanymailbox) at your ISP, waiting to be fetched. NetLinker's Mail Server then sorts and forwards the e-mail messages from the multidrop account to the corresponding mailboxes on the NetLinker.