This feature allows you to reject senders whose email domains do not match local domains or domains that you have whitelisted.
You should use Artica v4.40 or Artica 4.30 with unstable Service Pack 831
- On the left menu, choose “SMTP Router” / “Parameters"
- Turn on the checkbox “Reject sender's domains not listed in local database”
- By default, Artica use local domains ( if you install the local MDA service IMAP/POP3 ), if Artica act as a simple router fill the next field “Allowed: Domains” with sender's domains separated by a comma or a semicolon or a space.
If you turn on this feature only internals domains are allowed to send mails through this server.
This means you turn this server to an outgoing mail server only because senders Internet domains such has hotmail.* or yahoo.* will not allowed to send email to this server.