after configuring inbound email in vibe, new setup, enabling inbound while install, enabling in admin page, enabled incoming mail in folder, i send an email from groupwise to the vibe server.

And I receive the following message from the GWIA

The message that you sent was undeliverable to the following:

550 Unrouteable address

Iptables and port forwarding has been configured. As well as
host and reverse lookup will put out the right information from both sides (vibe and groupwise server)

Any proposals?